<http://schema.org/about>
"It's almost impossible to think about the words \"back to school\" without adding the word \"shopping\" to the other three. Back-to-school shopping is a tradition f"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/family/family-activities/stories/back-to-school-shopping-for-eco-kids>