<http://webisa.webdatacommons.org/257797522>	<http://www.w3.org/ns/prov#value>	"if R3, R4 and one of R1 or R2 is hydrogen, the other of R1 or R2 is an alkyl group having at least 2 carbon atoms." .
<http://webisa.webdatacommons.org/prov/465350667>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/257797522> .
<http://webisa.webdatacommons.org/257797522>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/464017586>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/257797522> .
<http://webisa.webdatacommons.org/257797522>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .