Question: What is cast member Amber Benson's character role in Buffy the Vampire Slayer (which has Joss Whedon as an executive producer)?
Choices: Tara Maclay
Stephen A. Douglas
Bob
Jefferson Coatsworth
Robert Epps
Olive Oyl
Tuya
Teresa Folchart
Buzz Lightyear
Big Nose Kate
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Buffy the Vampire Slayer" . ?e_1 <executive_producer> ?e_3 . ?e_3 <pred:name> "Joss Whedon" . ?e_2 <pred:name> "Amber Benson" . ?e_1 <cast_member> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <cast_member> ; <pred:fact_t> ?e_2 ] <character_role> ?qpv .  }
Program:
function: Find
inputs: Joss Whedon
function: Relate
dependencies: 0
inputs: executive producer
backward
function: Find
inputs: Buffy the Vampire Slayer
function: And
dependencies: 1
2
function: Find
inputs: Amber Benson
function: QueryRelationQualifier
dependencies: 3
4
inputs: cast member
character role
Answer: Tara Maclay