About: http://webisa.webdatacommons.org/45242324

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	However the += operator does have a few other advantages, like the fact that (x)+=1 works in macros where x is an expression that may have side effects which you want to avoid evaluating more than once...
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com