Question: Which disease did Warren Zevon die of?
Choices: prostate cancer
epilepsy
tuberculosis
attention deficit hyperactivity disorder
peritonitis
cerebral hemorrhage
pneumonia
influenza
gastroesophageal reflux disease
lung cancer
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "disease" . ?e_1 <cause_of_death> ?e . ?e_1 <pred:name> "Warren Zevon" .   }
Program:
function: Find
inputs: Warren Zevon
function: Relate
dependencies: 0
inputs: cause of death
forward
function: FilterConcept
dependencies: 1
inputs: disease
function: What
dependencies: 2
Answer: lung cancer