Question: What award was won by Joss Whedon in 2013?
Choices: Saturn Award for Best Director
Independent Spirit Award for Best Female Lead
Genie Award for Best Achievement in Editing
Academy Award for Best Supporting Actor
Grammy Award for Best Reggae Album
AACTA Award for Best Actress in a Leading Role
Latin Grammy Award for Best Male Pop Vocal Album
Royal Victorian Chain
Grammy Award for Best Metal Performance
Golden Globe Award for Best Animated Feature Film
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "award" . ?e <winner> ?e_1 . ?e_1 <pred:name> "Joss Whedon" .  [ <pred:fact_h> ?e ; <pred:fact_r> <winner> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 2013 .  }
Program:
function: Find
inputs: Joss Whedon
function: Relate
dependencies: 0
inputs: winner
backward
function: QFilterYear
dependencies: 1
inputs: point in time
2013
=
function: FilterConcept
dependencies: 2
inputs: award
function: What
dependencies: 3
Answer: Saturn Award for Best Director