<http://webisa.webdatacommons.org/prov/131776709>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/256749202> .
<http://webisa.webdatacommons.org/256749202>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/256749202>	<http://www.w3.org/ns/prov#value>	"X represents a hydroxyl, azide, mercapto, or amino (including mono-alkyl and mono-aryl substituted amino) group and preferably, X is an azide or a hydroxyl group;" .
<http://webisa.webdatacommons.org/256749202>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .