About: http://webisa.webdatacommons.org/156903949

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Keratin is an extremely tough protein (nails, horns and hooves are for the most part made of keratin).
http://www.w3.org/ns/prov#wasQuotedFrom	owndoc.com