About: http://webisa.webdatacommons.org/171817374

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	The letterbox is usually a plastic container such as a Rubbermaid or Tupperware sandwich box.
http://www.w3.org/ns/prov#wasQuotedFrom	aisling.net