<http://webisa.webdatacommons.org/prov/55121889>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/248866823> .
<http://webisa.webdatacommons.org/248866823>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/248866823>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/248866823>	<http://www.w3.org/ns/prov#value>	"R4 is a straight or branched alkylene chain; and R8 is" .