Question: San Francisco, Academy Award winner for Best Sound Mixing, was also the Academy Award nominee for which Best Actor's performance?
Choices: Robert Downey Jr.
Spencer Tracy
Toni Collette
James Corcoran
John B. Mansbridge
Melissa Leo
Walter F. Parkes
Forest Whitaker
Greg Jein
Celeste Holm
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "San Francisco" . ?e_1 <award_received> ?e_3 . ?e_3 <pred:name> "Academy Award for Best Sound Mixing" . ?e_2 <pred:name> "Academy Award for Best Actor" . ?e_1 <nominated_for> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <nominated_for> ; <pred:fact_t> ?e_2 ] <nominee> ?qpv .  }
Program:
function: Find
inputs: Academy Award for Best Sound Mixing
function: Relate
dependencies: 0
inputs: award received
backward
function: Find
inputs: San Francisco
function: And
dependencies: 1
2
function: Find
inputs: Academy Award for Best Actor
function: QueryRelationQualifier
dependencies: 3
4
inputs: nominated for
nominee
Answer: Spencer Tracy