About: http://webisa.webdatacommons.org/39517143

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	Yes, there is an outdoor swimming pool on the White House grounds (installed in the Ford Administration), and a single bowling alley lane in the White House (installed in the Nixon Administration).
http://www.w3.org/ns/prov#wasQuotedFrom	archives.gov