About: http://webisa.webdatacommons.org/390980283

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	e images GL1 and GR1 with respect to case where the object is an arrow which is vertically set on the optical axis and, further, a center position of the length of the arrow is located on the optical axis).
http://www.w3.org/ns/prov#wasQuotedFrom	google.es