Question: How many products are black-and-white?
Choices:
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Answer: 0
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "product" . ?e <color> ?e_1 . ?e_1 <pred:name> "black-and-white" .   }
Program:
function: Find
inputs: black-and-white
function: Relate
dependencies: 0
inputs: color
backward
function: FilterConcept
dependencies: 1
inputs: product
function: Count
dependencies: 2