<https://www.enago.com/academy/jp/#/schema/person/image/>
<http://schema.org/url>
<https://secure.gravatar.com/avatar/5a8b86794aad95e587fe87f3c9dbcdc6?s=96&d=mm&r=g>
<https://www.enago.jp/academy/writing-academic-biography-part2/>