Question: Who is the cast member of a visual artwork directed by Dean Semler ?
Choices: Steven Oscar Seagal
Joseph Conrad
Craig T. Nelson
David Wenham
Julius J. Epstein
Roger Daltrey
Bonnie Hunt
Patrick McGoohan
Ed Lauter
Carrie Preston
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <cast_member> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "visual artwork" . ?e_1 <director> ?e_2 . ?e_2 <pred:name> "Dean Semler" .   }
Program:
function: Find
inputs: Dean Semler
function: Relate
dependencies: 0
inputs: director
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: Relate
dependencies: 2
inputs: cast member
forward
function: FilterConcept
dependencies: 3
inputs: human
function: What
dependencies: 4
Answer: Steven Oscar Seagal