About: http://webisa.webdatacommons.org/435479148

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	If your data type will always handle specific periods of time (i.e. the year 1972 is a specific period of time, but the 4th of July is not specific), you can store your data as a start time and time span.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com