About: http://webisa.webdatacommons.org/413423388

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	x is a number that satisfies the valencies of the other elements present in formula (II); and
http://www.w3.org/ns/prov#wasQuotedFrom	google.es