<http://webisa.webdatacommons.org/prov/439938714>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/422059230> .
<http://webisa.webdatacommons.org/422059230>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/223037024>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/422059230> .
<http://webisa.webdatacommons.org/422059230>	<http://www.w3.org/ns/prov#value>	"C.sub.1-C.sub.4-alkyl, especially methyl or ethyl, and" .
<http://webisa.webdatacommons.org/422059230>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .