Question: When did British Columbia first border Alaska, founded on 1959-01-03?
Choices: 1789-03-04
2001-01-03
1984
1987-05-09
1959-01-03
1981-01-15
2010-04-27
1984-11-26
1990-05-11
1867
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "British Columbia" . ?e_2 <pred:name> "Alaska" . ?e_2 <inception> ?pv . ?pv <pred:date> "1959-01-03"^^xsd:date . ?e_1 <shares_border_with> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <shares_border_with> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: British Columbia
function: Find
inputs: Alaska
function: FilterDate
dependencies: 1
inputs: inception
1959-01-03
=
function: QueryRelationQualifier
dependencies: 0
2
inputs: shares border with
start time
Answer: 1959-01-03