About: http://webisa.webdatacommons.org/37501904

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 the midst of its floor was a sunk octagonal basin, about 9 ft. in diameter, which received water by a stone channel from an orifice in the apse, and a similar channel received the overflow on the opposite side of the basin.
http://www.w3.org/ns/prov#wasQuotedFrom	uchicago.edu