<http://webisa.webdatacommons.org/prov/30256486>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261479009> .
<http://webisa.webdatacommons.org/prov/340856098>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261479009> .
<http://webisa.webdatacommons.org/261479009>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/261479009>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/261479009>	<http://www.w3.org/ns/prov#value>	"Compounds of formula A, wherein R1 is hydrogen or halogen, particularly chlorine and R2 is hydrogen, particularly chlorine and R3 is hydrogen are described in WO 0044753." .