<http://webisa.webdatacommons.org/371269991>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/371269991>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/464017595>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/371269991> .
<http://webisa.webdatacommons.org/371269991>	<http://www.w3.org/ns/prov#value>	"With particular preference, R1 is an alkylene group, in particular a C2-C8 alkylene group." .