About: http://webisa.webdatacommons.org/157254267

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	R3 to R9 can independently have the structure CnHm, where n is an integer of about 2???30, and m is an integer of about 2???60.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com