Question: What is the beginning date that Odessa (that is the twinned administrative body of Yerevan) becomes the twinned administrative body of Varna?
Choices:
1966-06-10
1992-01-01
2017-02-02
1953-03-07
1994-12-17
1440
2010-09-26
1909-01-01
1887-01-01
1997-02-20
Answer: 1992-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Odessa" . ?e_3 <twinned_administrative_body> ?e_1 . ?e_3 <pred:name> "Yerevan" . ?e_2 <pred:name> "Varna" . ?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: Yerevan
function: Relate
dependencies: 0
inputs: twinned administrative body
forward
function: Find
inputs: Odessa
function: And
dependencies: 1
2
function: Find
inputs: Varna
function: QueryRelationQualifier
dependencies: 3
4
inputs: twinned administrative body
start time