Question: How many chemical compounds are white and have chemical formula C₁₂H₁₇N₄OS+?
Choices:
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Answer: 0
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "chemical compound" . ?e <color> ?e_1 . ?e_1 <pred:name> "white" .  ?e <chemical_formula> ?pv . ?pv <pred:value> "C₁₂H₁₇N₄OS+" .  }
Program:
function: Find
inputs: white
function: Relate
dependencies: 0
inputs: color
backward
function: FilterConcept
dependencies: 1
inputs: chemical compound
function: FindAll
function: FilterStr
dependencies: 3
inputs: chemical formula
C₁₂H₁₇N₄OS+
function: FilterConcept
dependencies: 4
inputs: chemical compound
function: And
dependencies: 2
5
function: Count
dependencies: 6