<http://webisa.webdatacommons.org/293481797>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/51508431>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/293481797> .
<http://webisa.webdatacommons.org/293481797>	<http://www.w3.org/ns/prov#value>	"In yet another embodiment of the invention, the sensing element 270 senses a pH or the presence or concentration of one or more chemical moieties such as products that may be produced during degradation of chemical" .
<http://webisa.webdatacommons.org/293481797>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/242019669>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/293481797> .