About: http://webisa.webdatacommons.org/440474477

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	That is, a calculus is a system for figuring out answers, and an algebra is a way of expressing the relations between terms.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com