Question: Tell me the symptom that has hypertension as a risk factor.
Choices: fatigue
epilepsy
vomiting
Alzheimer's disease
itch
heart failure
angina pectoris
stroke
abdominal pain
headache
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "symptom" . ?e_1 <risk_factor> ?e . ?e_1 <pred:name> "hypertension" .   }
Program:
function: Find
inputs: hypertension
function: Relate
dependencies: 0
inputs: risk factor
forward
function: FilterConcept
dependencies: 1
inputs: symptom
function: What
dependencies: 2
Answer: angina pectoris