About: http://webisa.webdatacommons.org/219547332

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	Edit: If you do not wish to use Counter as an academic exercise, then the next best option is a collections.defaultdict:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com