<http://schema.org/about>
"Imagine a surfboard that is 15% lighter than normal, with more control and speed in turns, that resists denting. One that has two third less toxic chemicals. Made from a material with weight for weight twice the strength of fibreglass and six times"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/bamboo-surfboards.html>