<http://schema.org/about>
"Food waste is a serious issue. And while schemes ranging from biojet fuel made from organic trash to mandatory food waste collection might help divert that waste to a good use, it would be"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/smart-packaging-warns-you-before-your-food-expires.html>