Question: When did a capital, which is the twinned administrative body of Rostov-on-Don, ended using Эривань as the official name ?
Choices:
1509
1991
2013-04-08
1990-01-03
1946-04-18
1980
1948-08-14
2013-01-18
1936
1960-01-01
Answer: 1936
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "capital" . ?e_1 <twinned_administrative_body> ?e . ?e_1 <pred:name> "Rostov-on-Don" .  ?e <official_name> ?pv . ?pv <pred:value> "Эривань" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_name> ; <pred:fact_t> ?pv ] <end_time> ?qpv .  }
Program:
function: Find
inputs: Rostov-on-Don
function: Relate
dependencies: 0
inputs: twinned administrative body
forward
function: FilterConcept
dependencies: 1
inputs: capital
function: QueryAttrQualifier
dependencies: 2
inputs: official name
Эривань
end time