<http://schema.org/description>
"Similar to how you already can do with Google Docs, those wishing to create and present using Google Slides, its presentation app, can now do so offline too.\r\n\r\nThe Internet giant announced ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2013/01/23/you-can-now-create-edit-and-present-using-google-slides-without-an-internet-connection/>