<http://webisa.webdatacommons.org/prov/516229774>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/207828320> .
<http://webisa.webdatacommons.org/207828320>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/207828320>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/207828320>	<http://www.w3.org/ns/prov#value>	"-(y)p-(S)q-(z)r-, wherein S is a spacer group, p, q and r are each 0 or" .