<http://webisa.webdatacommons.org/187937232>	<http://www.w3.org/ns/prov#value>	"which may optionally be substituted,R2 is a hydrogen, halogen," .
<http://webisa.webdatacommons.org/187937232>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/187937232>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/140589058>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/187937232> .