About: http://webisa.webdatacommons.org/227728778

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 found this book a little more helpful and the rules more clear, especially for special cases such as coming off hormonal birthcontrol.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com