<http://webisa.webdatacommons.org/207445252>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freshpatents.com> .
<http://webisa.webdatacommons.org/prov/59925573>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/207445252> .
<http://webisa.webdatacommons.org/207445252>	<http://www.w3.org/ns/prov#value>	"Contaminants may include moisture, finger oils and other materials which are transferred from the user to the touch screen surface." .
<http://webisa.webdatacommons.org/207445252>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .