Question: When did  Chennai become the twinned administrative body of Chongqing?
Choices: 2010-03-26
2015
1993-04-01
697
1993
2000-03-10
2001-12-28
1986-05-10
1947-06-21
1972-02-03
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Chennai" . ?e_2 <pred:name> "Chongqing" . ?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: Chennai
function: Find
inputs: Chongqing
function: QueryRelationQualifier
dependencies: 0
1
inputs: twinned administrative body
start time
Answer: 2015