Question: When did San Francisco (the one that is the twinned administrative body of Taipei) have a population of 149473?
Choices: 2003-03-23
1834
2015-01-12
1979-01-17
1870-01-01
1806-01-01
1994-06-16
1971-04-15
2014-06-01
1916-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "San Francisco" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Taipei" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "149473"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Taipei
function: Relate
dependencies: 0
inputs: twinned administrative body
backward
function: Find
inputs: San Francisco
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
149473
point in time
Answer: 1870-01-01