Question: How many airline corporations are the legal form of United Airlines?
Choices:
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "airline" . ?e <legal_form> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "corporation" . ?e_2 <legal_form> ?e_1 . ?e_2 <pred:name> "United Airlines" .   }
Program:
function: Find
inputs: United Airlines
function: Relate
dependencies: 0
inputs: legal form
forward
function: FilterConcept
dependencies: 1
inputs: corporation
function: Relate
dependencies: 2
inputs: legal form
backward
function: FilterConcept
dependencies: 3
inputs: airline
function: Count
dependencies: 4