Question: When did Aachen (whose postal code is 52075) become the twinned administrative body of Halifax (whose official name is Halifax Regional Municipality)?
Choices: 1969-12-11
1991-12-13
2000-11-01
1943-08-01
2006-02-23
1979-01-01
1990-03-18
2004-04-02
1992-01-15
1945-06-15
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Aachen" . ?e_1 <postal_code> ?pv . ?pv <pred:value> "52075" . ?e_2 <pred:name> "Halifax" . ?e_2 <official_name> ?pv_1 . ?pv_1 <pred:value> "Halifax Regional Municipality" . ?e_1 <twinned_administrative_body> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Aachen
function: FilterStr
dependencies: 0
inputs: postal code
52075
function: Find
inputs: Halifax
function: FilterStr
dependencies: 2
inputs: official name
Halifax Regional Municipality
function: QueryRelationQualifier
dependencies: 1
3
inputs: twinned administrative body
start time
Answer: 1979-01-01