<http://webisa.webdatacommons.org/168545443>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/465356513>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/168545443> .
<http://webisa.webdatacommons.org/168545443>	<http://www.w3.org/ns/prov#value>	"R4 is a nucleoside, optionally protected with a protecting group." .
<http://webisa.webdatacommons.org/168545443>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .