<http://webisa.webdatacommons.org/352731738>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/352731738>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/265487837>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/352731738> .
<http://webisa.webdatacommons.org/352731738>	<http://www.w3.org/ns/prov#value>	"L and L1 are preferably phosphines of the formula PR3 R4 R5, where R3 is a secondary alkyl or cycloalkyl, and R4 and R5 are aryl, C1 -C10 primary alkyl, secondary alkyl, or cycloalkyl." .