About: http://webisa.webdatacommons.org/272769077

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	They look at the Observatory and talk about how the various windows were used to track Venus and other alignments, and also was related to the calendar.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com