Question: What is voice actor Mae Whitman's role in Avatar: The Last Airbender that stars voice actor Grey DeLisle?
Choices: Professor Frink
Katara
Megatron
Bigweld
Otto Mann
Frank Lucas
Grouchy Smurf
Perry White
Appa
Angel Batista
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Avatar: The Last Airbender" . ?e_1 <voice_actor> ?e_3 . ?e_3 <pred:name> "Grey DeLisle" . ?e_2 <pred:name> "Mae Whitman" . ?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: Grey DeLisle
function: Relate
dependencies: 0
inputs: voice actor
backward
function: Find
inputs: Avatar: The Last Airbender
function: And
dependencies: 1
2
function: Find
inputs: Mae Whitman
function: QueryRelationQualifier
dependencies: 3
4
inputs: voice actor
character role
Answer: Katara