About: http://webisa.webdatacommons.org/312296511

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.es