About: http://webisa.webdatacommons.org/65452076

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	The indicator is a chemical which undergoes a physical change at the endpoint.
http://www.w3.org/ns/prov#wasQuotedFrom	maine.edu