About: http://webisa.webdatacommons.org/288471601

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	T in the above formula (5) represents O, S, NRj, or PRj, Rj represents a hydrocarbanyl radical, a trihydrocarbanylsilyl radical, a trihydrocarbanylgermanium radical, or hydride, and q is an integer of 1 or larger, preferably 1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com