Question: What person wins the Nebula Award for Best Novel involving the award-winning work A Time of Changes?
Choices: Richard Gere
Robert Silverberg
David Byrne
Rahul Dev Burman
Isaac Asimov
Joe Haldeman
William Henry Harrison
Max Fleischer
Kim Stanley Robinson
Larry Niven
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <winner> ?e . ?e_1 <pred:name> "Nebula Award for Best Novel" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <winner> ; <pred:fact_t> ?e ] <for_work> ?qpv . ?qpv <pred:value> "A Time of Changes" .  }
Program:
function: Find
inputs: Nebula Award for Best Novel
function: Relate
dependencies: 0
inputs: winner
forward
function: QFilterStr
dependencies: 1
inputs: for work
A Time of Changes
function: FilterConcept
dependencies: 2
inputs: human
function: What
dependencies: 3
Answer: Robert Silverberg