Question: When did  Tijuana start becoming the twinned administrative body of San Diego?
Choices:
1989-08-17
2006-03-12
1943-09-07
1997-03-14
1960-12-09
1967-10-19
2017-02-22
2007-08-17
1993-01-01
2013-04-01
Program:
function: Find
inputs: Tijuana
function: Find
inputs: San Diego
function: QueryRelationQualifier
dependencies: 0
1
inputs: twinned administrative body
start time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Tijuana" . ?e_2 <pred:name> "San Diego" . ?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 .  }
Answer: 1993-01-01