About: http://webisa.webdatacommons.org/6634649

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 some cases, these trapdoors were used to conceal fugitives and valued belongings, and they would have been covered by rugs, tables, or other objects to make them hard to see and access.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com