About: http://webisa.webdatacommons.org/212416354

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	Proteins are made of amino acids, such as glycine, proline, arginine, hydroxyproline, which are amino acids that exist in collagen in varying proportions, depending upon the source.
http://www.w3.org/ns/prov#wasQuotedFrom	thedoctorwithin.com