<http://webisa.webdatacommons.org/prov/439938714>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/318507147> .
<http://webisa.webdatacommons.org/318507147>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/318507147>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/318507147>	<http://www.w3.org/ns/prov#value>	"C.sub.1-C.sub.4-alkyl and especially methyl." .