<http://webisa.webdatacommons.org/294284016>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/294284016>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/465097837>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/294284016> .
<http://webisa.webdatacommons.org/prov/464853705>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/294284016> .
<http://webisa.webdatacommons.org/294284016>	<http://www.w3.org/ns/prov#value>	"Preferably, either R5 or R6 is a methyl group, and the other is not." .