<http://schema.org/about>
"Why not wrap up dung for crops, a tree for a butterfly, the wellbeing of an octopus, or a camel for milk this year?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/culture/10-offbeat-charity-gifts-do-world-good/page/4/>