<http://webisa.webdatacommons.org/448437400>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/448437400>	<http://www.w3.org/ns/prov#value>	"indicator can respond to the light to provide an optical signal which is related to the property to be measured, such as the partial pressure of the selected gas." .
<http://webisa.webdatacommons.org/448437400>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/prov/61819505>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/448437400> .