<http://webisa.webdatacommons.org/187904085>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/187904085>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/131467867>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/187904085> .
<http://webisa.webdatacommons.org/187904085>	<http://www.w3.org/ns/prov#value>	"wherein R is a C1-C6 aliphatic or aromatic group, R??? is H, CH3, or C2H5, n has a value of at least 1, and A is an ester, amide, or ether group." .