Question: What is the beginning date that Madrid is the twinned administrative body of Lisbon (that is the twinned administrative body of Santiago de Cuba)?
Choices: 1989-09-09
500
2006-07-31
1994-07-12
1648
1979-05-31
1910-08-29
2001-07-09
1900
1976-09-13
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Madrid" . ?e_2 <pred:name> "Lisbon" . ?e_2 <twinned_administrative_body> ?e_3 . ?e_3 <pred:name> "Santiago de Cuba" . ?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: Madrid
function: Find
inputs: Santiago de Cuba
function: Relate
dependencies: 1
inputs: twinned administrative body
backward
function: Find
inputs: Lisbon
function: And
dependencies: 2
3
function: QueryRelationQualifier
dependencies: 0
4
inputs: twinned administrative body
start time
Answer: 1979-05-31