About: http://webisa.webdatacommons.org/136535150

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	and substituted and unsubstituted nine, ten and eleven member tricyclic rings, R may be chosen from H or alkyl, such as methyl, ethyl, propyl or butyl, and n and m may be the same or different each integer chosen from 0 to 6.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com