This is a haiku by Basho. His URL is https://authorship.rocks/test/5/about-basho, and his photo is at https://authorship.rocks/images/basho.jpg,

This page shows an h-entry without author information. At the bottom of the page, there is a link with rel="author". That page contains an h-card, where the u-url and u-uid pointing to itself. You will need to fetch this second page to solve this test.

古池や
蛙飛び込む
水の音