Question: What large city is the twinned administrative body of Liverpool (whose population is 513441), having a start date in the year 1952?
Choices:
Regensburg
Wuppertal
Halle (Saale)
Lyon
Fort Smith
Utrecht
Stuttgart
Bordeaux
Dnipro
Cologne
Answer: Cologne
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "big city" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Liverpool" . ?e_1 <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "513441"^^xsd:double .  [ <pred:fact_h> ?e ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:year> 1952 .  }
Program:
function: Find
inputs: Liverpool
function: FilterNum
dependencies: 0
inputs: population
513441
=
function: Relate
dependencies: 1
inputs: twinned administrative body
backward
function: QFilterYear
dependencies: 2
inputs: start time
1952
=
function: FilterConcept
dependencies: 3
inputs: big city
function: What
dependencies: 4