About: http://webisa.webdatacommons.org/422817074

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	There is tons of other reasons, therefore database vendors especially introduce sequences, or autogenerated unique types so people will avoid making the select max(id+1) mistake.
http://www.w3.org/ns/prov#wasQuotedFrom	theserverside.com