<http://webisa.webdatacommons.org/prov/53901185>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158409152> .
<http://webisa.webdatacommons.org/158409152>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/158409152>	<http://www.w3.org/ns/prov#value>	" formula: Mx Qy, where M=R3 SiO1/2 ; Q=SiO4/2 ; and R preferably is a methyl group." .
<http://webisa.webdatacommons.org/158409152>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .