About: http://webisa.webdatacommons.org/301462226

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	I do not know if you have read the book, but in the very next line he goes on to say, Homocysteine is an amino acid that is derived primarily from animal protein.
http://www.w3.org/ns/prov#wasQuotedFrom	mothering.com