<http://webisa.webdatacommons.org/100071364>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/100071364>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/100071364>	<http://www.w3.org/ns/prov#value>	"R' and R are hydrogen, C1 to C5 alkyl, or C1 to C5 primary or secondary alkyl, and most preferably R' and R are hydrogen." .
<http://webisa.webdatacommons.org/prov/63419341>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/100071364> .