<http://webisa.webdatacommons.org/prov/54308862>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/257042317> .
<http://webisa.webdatacommons.org/257042317>	<http://www.w3.org/ns/prov#value>	"In the above formulas, a ???CH2??? group can be substituted with a ???Si(OR)2??? group in which R is an alkyl, phenyl, or halogenated alkyl containing 1???6 carbon atoms." .
<http://webisa.webdatacommons.org/257042317>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/257042317>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .