Question: What large city has the local area code 02151?
Choices: Stuttgart
Wiesbaden
Metz
Helsingborg
Utrecht
Cologne
Duisburg
Halle (Saale)
Erlangen
Lyon
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "big city" . ?e <local_dialing_code> ?pv . ?pv <pred:value> "02151" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: local dialing code
02151
function: FilterConcept
dependencies: 1
inputs: big city
function: What
dependencies: 2
Answer: Duisburg