<http://webisa.webdatacommons.org/117486187>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .
<http://webisa.webdatacommons.org/prov/464017586>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/117486187> .
<http://webisa.webdatacommons.org/117486187>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/117486187>	<http://www.w3.org/ns/prov#value>	"The composition of claim 19, wherein at least one porphine is represented by the following formula wherein M is iron, cobalt or copper; and wherein R is SO3H, COOH, or R1COOH wherein R1 is an alkyl group of from 1 to 6 carbons." .