<http://webisa.webdatacommons.org/prov/55021638>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/234068207> .
<http://webisa.webdatacommons.org/234068207>	<http://www.w3.org/ns/prov#value>	"More preferably, R3 is a hydrogen atom, a methyl group or an ethyl group, and R4 to R6 are hydrogen atoms." .
<http://webisa.webdatacommons.org/prov/140673815>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/234068207> .
<http://webisa.webdatacommons.org/prov/464850948>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/234068207> .
<http://webisa.webdatacommons.org/234068207>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .
<http://webisa.webdatacommons.org/234068207>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .