<http://schema.org/about>
" Here's a way to make homemade ice cream without taxing the environment--no electricity is used.   However sustained energy is needed, in the form of elbow grease.  Just push, roll or shake (no kicking please) a magic football around for 20 minutes et"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/no-energy-ice-cream.html>