About: http://webisa.webdatacommons.org/216036189

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	The type of phosphorus-containing ring may vary widely, may be substituted or may contain other than carbon atoms in the ring, for example, ##STR7##
http://www.w3.org/ns/prov#wasQuotedFrom	google.com