Question: How many programming languages are there whose Ubuntu package is perl-doc?
Choices: 0
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "programming language" . ?e <Ubuntu_package> ?pv . ?pv <pred:value> "perl-doc" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Ubuntu package
perl-doc
function: FilterConcept
dependencies: 1
inputs: programming language
function: Count
dependencies: 2
Answer: 1