<http://webisa.webdatacommons.org/14902897>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/14902897>	<http://www.w3.org/ns/prov#value>	"In applications, R 1 , R 2 and R 3 are methyl groups and R 4 is an ethyl group." .
<http://webisa.webdatacommons.org/14902897>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sumobrain.com> .
<http://webisa.webdatacommons.org/prov/370010212>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/14902897> .