Question: How many airlines in Chile and whose airline callsign is UNITED?
Choices:
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Answer: 0
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "airline" . ?e <country> ?e_1 . ?e_1 <pred:name> "Chile" .  ?e <callsign_of_airline> ?pv . ?pv <pred:value> "UNITED" .  }
Program:
function: Find
inputs: Chile
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: airline
function: FindAll
function: FilterStr
dependencies: 3
inputs: callsign of airline
UNITED
function: FilterConcept
dependencies: 4
inputs: airline
function: And
dependencies: 2
5
function: Count
dependencies: 6