Question: When did Busan become the twinned administrative body of Shanghai?
Choices: 1848-05-29
2011-09-13
1993-01-01
1898-08-12
2010-06-18
2012
1982-10-26
1995-04-21
1975
1550
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Busan" . ?e_2 <pred:name> "Shanghai" . ?e_3 <twinned_administrative_body> ?e_2 . ?e_3 <pred:name> "Busan" . ?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: Busan
function: Find
inputs: Busan
function: Relate
dependencies: 1
inputs: twinned administrative body
forward
function: Find
inputs: Shanghai
function: And
dependencies: 2
3
function: QueryRelationQualifier
dependencies: 0
4
inputs: twinned administrative body
start time
Answer: 1993-01-01