Question: Until when was the official name of Yekaterinburg Свердловськ?
Choices: 1959-04-27
1974-12-08
1990-11-28
1991
1926-07-20
1953-12-31
2010-02-08
1793-12-31
1950
1978-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Yekaterinburg" . ?e <official_name> ?pv . ?pv <pred:value> "Свердловськ" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_name> ; <pred:fact_t> ?pv ] <end_time> ?qpv .  }
Program:
function: Find
inputs: Yekaterinburg
function: QueryAttrQualifier
dependencies: 0
inputs: official name
Свердловськ
end time
Answer: 1991