<http://schema.org/caption>
"Image credit: Greig Reekle via &lt;a href=\"http://www.xerox.com\" target=\"_blank\"&gt;Xerox&lt;/a&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/experimental-xerox-paper-erases-itself-for-reuse/9283/>