<http://webisa.webdatacommons.org/prov/333745315>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134464283> .
<http://webisa.webdatacommons.org/134464283>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/134464283>	<http://www.w3.org/ns/prov#value>	"and R2 is a hydrogen atom, R3 and R4 taken together form a" .
<http://webisa.webdatacommons.org/prov/54955862>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134464283> .
<http://webisa.webdatacommons.org/134464283>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/54955980>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134464283> .