About: http://webisa.webdatacommons.org/277241763

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	In 1849, this building was enlarged and.. a second story was added to the structure and that was surmounted with a sort of observatory.
http://www.w3.org/ns/prov#wasQuotedFrom	illinois.edu