About: http://webisa.webdatacommons.org/184976141

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	1) all vertices except leaves are labelled by operations of and a vertex with n input edges must be labelled by an n-ary operation of and 2) all edges except those touching the leaves are labelled by numbers in .
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com