<http://webisa.webdatacommons.org/prov/465097835>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/271417194> .
<http://webisa.webdatacommons.org/271417194>	<http://www.w3.org/ns/prov#value>	"bis(imidazoline-2-ylidene)s of the formula or protonated salts thereof, wherein R1, R2, R3, and R4 are as defined for the imidazoline-2-ylidenes, wherein R3??? and R4??? are as defined for R3 and R4 for the imidazoline-2-ylidenes, and wherein R5 is a bridging group that links the two imidazoline rings;" .
<http://webisa.webdatacommons.org/271417194>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/271417194>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .