Question: What is the official opening time of Burlington, which was established in 1947?
Choices: 1897
1947
1824
1945
1931-05-01
1983
1898-07-31
1929-11-07
1939-10-15
1939-04-30
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Burlington" . ?e <inception> ?pv_1 . ?pv_1 <pred:year> 1947 . ?e <date_of_official_opening> ?pv .  }
Program:
function: Find
inputs: Burlington
function: FilterYear
dependencies: 0
inputs: inception
1947
=
function: QueryAttr
dependencies: 1
inputs: date of official opening
Answer: 1947