<http://webisa.webdatacommons.org/prov/167580800>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51319153> .
<http://webisa.webdatacommons.org/51319153>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/55134918>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51319153> .
<http://webisa.webdatacommons.org/51319153>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/333024195>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51319153> .
<http://webisa.webdatacommons.org/prov/514955530>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51319153> .
<http://webisa.webdatacommons.org/51319153>	<http://www.w3.org/ns/prov#value>	" hydrogen atom, R5 is a hydrogen atom, R6 is a --COOH group or a C-bonding tetrazolyl group and R7 and R8 may be the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom or a lower alkyl group." .