About: http://webisa.webdatacommons.org/109912992

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	Each of the alignment marks is constructed of a highly reflective material, such as aluminum, and is surrounded by a field region devoid of reflective material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com