Question: What symptom has a disease, whose ICD-9-CM is 997.91, as one of the risk factors ?
Choices: angina pectoris
fever
vomiting
nausea
itch
Alzheimer's disease
abdominal pain
fatigue
epilepsy
anorexia
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "symptom" . ?e_1 <risk_factor> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "disease" . ?e_1 <ICD-9-CM> ?pv . ?pv <pred:value> "997.91" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: ICD-9-CM
997.91
function: FilterConcept
dependencies: 1
inputs: disease
function: Relate
dependencies: 2
inputs: risk factor
forward
function: FilterConcept
dependencies: 3
inputs: symptom
function: What
dependencies: 4
Answer: angina pectoris