<?xml version="1.0" encoding="UTF-8"?>  <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://purewater.hatenablog.com/sitemap_common.xml</loc><lastmod>2026-06-21T07:31:31+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2026&amp;month=5</loc><lastmod>2026-06-21T07:31:31+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2026&amp;month=4</loc><lastmod>2026-05-21T00:58:58+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2026&amp;month=2</loc><lastmod>2026-04-16T00:18:24+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2026&amp;month=1</loc><lastmod>2026-02-16T00:22:46+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2025&amp;month=12</loc><lastmod>2026-01-22T23:08:36+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2025&amp;month=11</loc><lastmod>2025-12-16T23:05:03+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2025&amp;month=7</loc><lastmod>2025-12-01T00:11:49+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2025&amp;month=6</loc><lastmod>2025-12-08T23:31:44+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2025&amp;month=2</loc><lastmod>2026-02-03T01:59:47+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2024&amp;month=5</loc><lastmod>2025-02-21T23:12:22+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2024&amp;month=4</loc><lastmod>2025-04-02T23:42:27+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2022&amp;month=6</loc><lastmod>2022-08-14T22:04:30+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2022&amp;month=5</loc><lastmod>2026-05-12T01:09:22+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=12</loc><lastmod>2022-01-28T01:41:27+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=11</loc><lastmod>2024-03-28T01:40:18+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=10</loc><lastmod>2021-11-04T10:49:24+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=9</loc><lastmod>2022-05-17T03:33:12+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=8</loc><lastmod>2021-09-03T20:21:15+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=3</loc><lastmod>2021-03-25T13:57:16+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=2</loc><lastmod>2026-02-10T01:17:52+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2021&amp;month=1</loc><lastmod>2021-09-02T01:56:20+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=7</loc><lastmod>2025-02-28T11:31:08+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=6</loc><lastmod>2025-02-28T11:22:53+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=5</loc><lastmod>2021-06-02T08:54:00+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=4</loc><lastmod>2020-06-05T22:44:01+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=3</loc><lastmod>2020-06-05T22:00:54+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=2</loc><lastmod>2020-06-05T01:30:25+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2019&amp;month=1</loc><lastmod>2025-03-26T02:18:46+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=12</loc><lastmod>2024-07-23T05:15:10+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=11</loc><lastmod>2020-06-01T18:11:33+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=10</loc><lastmod>2024-12-15T17:16:52+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=9</loc><lastmod>2024-12-15T18:09:44+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=8</loc><lastmod>2024-12-15T17:58:35+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=7</loc><lastmod>2024-12-15T17:37:50+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=6</loc><lastmod>2020-07-01T10:54:32+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=5</loc><lastmod>2020-07-01T10:56:51+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=4</loc><lastmod>2020-07-24T23:06:15+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=3</loc><lastmod>2020-07-24T08:13:07+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=2</loc><lastmod>2020-07-01T11:17:01+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2018&amp;month=1</loc><lastmod>2021-03-30T10:49:21+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=12</loc><lastmod>2020-07-01T10:53:19+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=11</loc><lastmod>2020-07-01T11:03:07+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=10</loc><lastmod>2020-02-01T08:06:36+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=9</loc><lastmod>2020-07-01T11:28:58+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=8</loc><lastmod>2020-07-01T11:30:06+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=7</loc><lastmod>2020-07-01T11:18:43+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=6</loc><lastmod>2020-07-01T11:31:49+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=5</loc><lastmod>2020-06-09T07:42:14+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=4</loc><lastmod>2020-07-01T11:33:47+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=3</loc><lastmod>2020-03-02T22:36:40+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=2</loc><lastmod>2020-03-02T22:38:07+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2017&amp;month=1</loc><lastmod>2021-06-04T09:15:56+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=12</loc><lastmod>2020-02-03T19:50:48+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=11</loc><lastmod>2020-07-01T11:36:02+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=10</loc><lastmod>2020-10-14T00:14:58+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=9</loc><lastmod>2020-02-21T06:46:47+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=8</loc><lastmod>2020-06-25T02:52:35+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=7</loc><lastmod>2025-11-13T21:06:57+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=6</loc><lastmod>2020-02-12T00:09:34+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=5</loc><lastmod>2020-05-22T07:34:59+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=4</loc><lastmod>2020-05-25T23:25:41+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=3</loc><lastmod>2020-05-22T07:34:03+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=2</loc><lastmod>2021-03-26T04:37:24+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2016&amp;month=1</loc><lastmod>2020-03-11T05:14:56+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=12</loc><lastmod>2020-03-20T08:52:41+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=11</loc><lastmod>2020-05-22T07:19:04+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=10</loc><lastmod>2020-05-22T07:15:52+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=9</loc><lastmod>2020-02-04T07:43:26+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=8</loc><lastmod>2021-02-02T05:45:51+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=7</loc><lastmod>2023-12-29T01:24:06+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=6</loc><lastmod>2020-03-02T23:04:11+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=5</loc><lastmod>2020-01-27T07:56:07+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=4</loc><lastmod>2020-01-27T08:03:46+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=3</loc><lastmod>2026-05-15T22:46:28+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=2</loc><lastmod>2020-06-19T00:23:45+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2015&amp;month=1</loc><lastmod>2020-01-26T20:22:13+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=12</loc><lastmod>2020-02-25T21:32:33+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=11</loc><lastmod>2020-05-22T07:28:03+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=10</loc><lastmod>2020-06-18T22:20:50+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=9</loc><lastmod>2020-06-18T22:09:48+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=8</loc><lastmod>2021-02-02T05:26:33+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=7</loc><lastmod>2021-02-02T05:23:30+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=6</loc><lastmod>2020-06-18T22:21:57+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=5</loc><lastmod>2020-02-18T09:56:48+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=4</loc><lastmod>2020-06-20T02:46:11+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=3</loc><lastmod>2020-02-25T21:42:25+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=2</loc><lastmod>2020-06-18T22:23:14+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2014&amp;month=1</loc><lastmod>2020-06-18T22:23:33+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=12</loc><lastmod>2024-07-31T09:31:56+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=11</loc><lastmod>2020-03-19T01:18:01+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=10</loc><lastmod>2020-06-11T22:01:40+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=9</loc><lastmod>2020-06-18T22:24:35+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=8</loc><lastmod>2020-06-18T22:25:55+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=7</loc><lastmod>2020-03-11T05:37:32+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=6</loc><lastmod>2020-05-28T07:41:06+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=5</loc><lastmod>2020-06-18T22:27:27+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=4</loc><lastmod>2020-06-18T22:27:52+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=3</loc><lastmod>2021-02-02T05:32:24+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=2</loc><lastmod>2020-05-27T23:09:52+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2013&amp;month=1</loc><lastmod>2020-03-03T05:23:20+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=12</loc><lastmod>2020-02-25T22:00:13+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=11</loc><lastmod>2020-02-25T22:02:06+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=10</loc><lastmod>2020-03-03T05:28:07+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=9</loc><lastmod>2020-02-05T22:03:39+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=7</loc><lastmod>2020-02-28T07:51:43+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=6</loc><lastmod>2020-03-03T21:53:05+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=5</loc><lastmod>2020-03-03T22:06:55+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=4</loc><lastmod>2020-02-04T19:39:35+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=3</loc><lastmod>2020-03-03T22:21:58+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=2</loc><lastmod>2025-02-28T11:41:48+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2012&amp;month=1</loc><lastmod>2026-01-25T00:08:19+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2011&amp;month=12</loc><lastmod>2026-01-25T00:07:31+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2011&amp;month=11</loc><lastmod>2020-06-18T22:16:48+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2011&amp;month=10</loc><lastmod>2025-02-28T12:15:49+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2011&amp;month=9</loc><lastmod>2020-06-18T22:03:20+09:00</lastmod></sitemap><sitemap><loc>https://purewater.hatenablog.com/sitemap_periodical.xml?year=2011&amp;month=8</loc><lastmod>2020-05-25T23:28:14+09:00</lastmod></sitemap></sitemapindex>