Question: How many families whose country is Holy Roman Empire?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "family" . ?e <country> ?e_1 . ?e_1 <pred:name> "Holy Roman Empire" .   }
Program:
function: Find
inputs: Holy Roman Empire
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: family
function: Count
dependencies: 2