About: http://webisa.webdatacommons.org/401458962

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 activation layer 203 comprises an indicator, such as a pH indicator which reacts with the fluid layer 207, when the fluid layer 207 sufficiently depletes or dissolves the lens coating layer 205.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com