About: http://webisa.webdatacommons.org/333367711

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	(where n is an integer of 0 to 4, and R1 to R4 may be identical or different from each other, each of R1 to R4 representing H or an organic group, or R1 to R4 may form a ring).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com