Question: What person stopped working before the year 2000 and died from Alzheimer's disease?
Choices: David Niven
Mark Twain
Donald Pleasence
Glen Campbell
Vincente Minnelli
Richard Burton
Robert Louis Stevenson
Abe Burrows
Elvis Presley
Rita Hayworth
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <cause_of_death> ?e_1 . ?e_1 <pred:name> "Alzheimer's disease" .  ?e <work_period_(end)> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2000 ) .  }
Program:
function: Find
inputs: Alzheimer's disease
function: Relate
dependencies: 0
inputs: cause of death
backward
function: FilterConcept
dependencies: 1
inputs: human
function: FindAll
function: FilterYear
dependencies: 3
inputs: work period (end)
2000
<
function: FilterConcept
dependencies: 4
inputs: human
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: Rita Hayworth