Question: How is Google (the one whose programming language is C++) connected to C?
Choices: programming language
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SPARQL: SELECT DISTINCT ?p WHERE { ?e_1 <pred:name> "Google" . ?e_1 <programming_language> ?e_3 . ?e_3 <pred:name> "C++" . ?e_2 <pred:name> "C" . ?e_1 ?p ?e_2 .  }
Program:
function: Find
inputs: C++
function: Relate
dependencies: 0
inputs: programming language
backward
function: Find
inputs: Google
function: And
dependencies: 1
2
function: Find
inputs: C
function: QueryRelation
dependencies: 3
4
Answer: programming language