About: http://webisa.webdatacommons.org/313874280

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	An astrolabe is a scientific instrument with which a user is able to determine information on the angle of altitude of a celestial body such as a star, a planet, the moon, or the sun.
http://www.w3.org/ns/prov#wasQuotedFrom	iu.edu