Question: What is the character role of Crispin Glover in  Back to the Future (the one whose composer is Alan Silvestri)?
Choices: Preston Burke
Connie Corleone
Finis Valorum
Gary the Monster
Bane
Abby
Erich Ludendorff
Rapunzel
George McFly
Stabbington Brother
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Back to the Future" . ?e_1 <composer> ?e_3 . ?e_3 <pred:name> "Alan Silvestri" . ?e_2 <pred:name> "Crispin Glover" . ?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: Alan Silvestri
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Back to the Future
function: And
dependencies: 1
2
function: Find
inputs: Crispin Glover
function: QueryRelationQualifier
dependencies: 3
4
inputs: cast member
character role
Answer: George McFly