<http://webisa.webdatacommons.org/421490094>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/421490094>	<http://www.w3.org/ns/prov#value>	"It is therefore necessary to suppress the amount of fluorine atoms bonded in such positions as to hinder the development of the three-dimensional network, thereby avoiding the loss in strength of the skeleton." .
<http://webisa.webdatacommons.org/prov/463598354>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421490094> .
<http://webisa.webdatacommons.org/421490094>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .