Question: How many symptoms are a sign of the disease whose UMLS CUI is C0002871?
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Answer: 3
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "symptom" . ?e <symptom_of> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "disease" . ?e_1 <UMLS_CUI> ?pv . ?pv <pred:value> "C0002871" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: UMLS CUI
C0002871
function: FilterConcept
dependencies: 1
inputs: disease
function: Relate
dependencies: 2
inputs: symptom of
backward
function: FilterConcept
dependencies: 3
inputs: symptom
function: Count
dependencies: 4