<http://schema.org/about>
"Here's to the man who invented stairs\nAnd taught our feet to soar!\nHe was the first who ever burst\nInto a second floor.\nThe world would be downstairs to-day\nHad he not found the key;\nSo let his"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/stair-of-the-week-a-whole-website.html>