<http://webisa.webdatacommons.org/139516355>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/139516355>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/139516355>	<http://www.w3.org/ns/prov#value>	"A preferred example of the heterocyclic group formed by Z is a heterocyclic group substituted by at least one substituent selected from alkylthio group, arylthio group, mercapto group and disulfide group." .
<http://webisa.webdatacommons.org/prov/131326686>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139516355> .