<http://schema.org/about>
"Scientists are hatching a plan to turn discarded eggshells into eco-friendly bioplastics, with potential uses ranging from medicine to food packaging."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/research-innovations/blogs/easter-miracle-eggshells-reborn-as-plastics>