Question: Since when has Mannheim been the twinned administrative body of Swansea?
Choices: 1977-01-20
1975-05-16
2001-03-07
1962-10-25
1957
1929-12-16
2003-04-30
1960-01-20
1963-12-13
1990-08-05
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Mannheim" . ?e_2 <pred:name> "Swansea" . ?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: Mannheim
function: Find
inputs: Swansea
function: QueryRelationQualifier
dependencies: 0
1
inputs: twinned administrative body
start time
Answer: 1957