<http://schema.org/about>
"Scientists have been studying for years how to mass produce spider silk, a super strong wonder-material that we could use for countless purposes, if we could make enough of it. While some researchers work on devising"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/mutant-silkworms-produce-super-strong-spider-silk-video.html>