About: http://webisa.webdatacommons.org/226906416

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	FIG. 2 is a graph of a light signal that is used to assist in determining the pH of a material in accord with a preferred embodiment of the invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com