About: http://webisa.webdatacommons.org/108950149

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	Although such defects were clear as early as 1849, nothing was done for the remainder of the 19th century even after much studying.[34] During the 1910s, however, it became clear that some of the stonework had to be replaced.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org