Question: What is a symptom of rheumatoid arthritis?
Choices: fever
vomiting
nausea
itch
anorexia
fatigue
dyspnea
headache
angina pectoris
abdominal pain
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "symptom" . ?e <symptom_of> ?e_1 . ?e_1 <pred:name> "rheumatoid arthritis" .   }
Program:
function: Find
inputs: rheumatoid arthritis
function: Relate
dependencies: 0
inputs: symptom of
backward
function: FilterConcept
dependencies: 1
inputs: symptom
function: What
dependencies: 2
Answer: anorexia