Question: Who won the Academy Award for Best Supporting Actor in 1942-01-01?
Choices: Max Fleischer
David Byrne
Van Heflin
George Clooney
Michael Caine
Joe Pesci
Timothy Hutton
Richard Gere
Chris Cooper
Sylvester Stallone
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <award_received> ?e_1 . ?e_1 <pred:name> "Academy Award for Best Supporting Actor" .  [ <pred:fact_h> ?e ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:date> "1942-01-01"^^xsd:date .  }
Program:
function: Find
inputs: Academy Award for Best Supporting Actor
function: Relate
dependencies: 0
inputs: award received
backward
function: QFilterDate
dependencies: 1
inputs: point in time
1942-01-01
=
function: FilterConcept
dependencies: 2
inputs: human
function: What
dependencies: 3
Answer: Van Heflin