About: http://webisa.webdatacommons.org/449815598

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	wherein X7 and X8, and X9 in each unit of the polymer is a group independently selected from a substituent selected from C(O)CH2 CH(SH)COOH,
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk