Question: What is Stephen Hawking's character role as a voice actor in the work Futurama (the one that has Lucy Liu as a voice actor)?
Choices: Captain Jack Sparrow
Wai Lin
Stephen Hawking
Lilith Sternin
Heimdall
Bail Organa
Gandalf
Sue Snell
Black Knight
Master Shifu
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Futurama" . ?e_1 <voice_actor> ?e_3 . ?e_3 <pred:name> "Lucy Liu" . ?e_2 <pred:name> "Stephen Hawking" . ?e_1 <voice_actor> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <voice_actor> ; <pred:fact_t> ?e_2 ] <character_role> ?qpv .  }
Program:
function: Find
inputs: Lucy Liu
function: Relate
dependencies: 0
inputs: voice actor
backward
function: Find
inputs: Futurama
function: And
dependencies: 1
2
function: Find
inputs: Stephen Hawking
function: QueryRelationQualifier
dependencies: 3
4
inputs: voice actor
character role
Answer: Stephen Hawking