<http://webisa.webdatacommons.org/355689315>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/375325737>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/355689315> .
<http://webisa.webdatacommons.org/355689315>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/355689315>	<http://www.w3.org/ns/prov#value>	"Because of availability and performance, the preferred R2 is a lower alkyl such as methyl or ethyl." .
<http://webisa.webdatacommons.org/prov/116659529>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/355689315> .