Question: Which human received a Tony Award for Best Actor in a Play in 1960 and is a United States of America citizen?
Choices: Michael Moriarty
Philip Roth
Sylvester Stallone
Al Pacino
Bobby Darin
Anne Bancroft
Ralph Bellamy
Walter Matthau
Ron Silver
Melvyn Douglas
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <award_received> ?e_1 . ?e_1 <pred:name> "Tony Award for Best Actor in a Play" .  [ <pred:fact_h> ?e ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 1960 . ?e <country_of_citizenship> ?e_2 . ?e_2 <pred:name> "United States of America" .  }
Program:
function: Find
inputs: Tony Award for Best Actor in a Play
function: Relate
dependencies: 0
inputs: award received
backward
function: QFilterYear
dependencies: 1
inputs: point in time
1960
=
function: FilterConcept
dependencies: 2
inputs: human
function: Find
inputs: United States of America
function: Relate
dependencies: 4
inputs: country of citizenship
backward
function: FilterConcept
dependencies: 5
inputs: human
function: And
dependencies: 3
6
function: What
dependencies: 7
Answer: Melvyn Douglas