About: http://webisa.webdatacommons.org/428677800

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	Notably, keratin is the main component of nails and hair in mammals, scales and claws in reptiles, many parts of birds including feathers, and make up arthropod exoskeletons along with chitin.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com