About: http://webisa.webdatacommons.org/230682586

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 most preferred non-phenylindane aromatic dianhydrides, characterised by the general formula ##STR7## in which R15 is methylene, oxygen, sulfonyl or in particular carbonyl.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com