About: http://webisa.webdatacommons.org/438057369

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	All they had to do was stand in the same spot every day (a fixed observing position) and use large stones, trees, or other landmarks to mark the point in their view where the sun rose or set.
http://www.w3.org/ns/prov#wasQuotedFrom	iastate.edu