<http://webisa.webdatacommons.org/prov/465356518>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/87165264> .
<http://webisa.webdatacommons.org/87165264>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/87165264>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/87165264>	<http://www.w3.org/ns/prov#value>	"R4 is a hydroxyl group or a protected hydroxyl group;" .