Question: Which disease caused the death of Agnes Nixon?
Choices:
multiple sclerosis
attention deficit hyperactivity disorder
Parkinson disease
epilepsy
liver cancer
malaria
sepsis
gastroesophageal reflux disease
prostate cancer
amyotrophic lateral sclerosis
Answer: Parkinson disease
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "disease" . ?e_1 <cause_of_death> ?e . ?e_1 <pred:name> "Agnes Nixon" .   }
Program:
function: Find
inputs: Agnes Nixon
function: Relate
dependencies: 0
inputs: cause of death
forward
function: FilterConcept
dependencies: 1
inputs: disease
function: What
dependencies: 2