Question: Tell me the person who is the German citizen who works as an illustrator.
Choices: David Hilbert
G. K. Chesterton
Hans Dreier
Richard Wagner
Beck
William Joyce
Erich Ludendorff
Pablo Picasso
Clive Barker
Dr. Seuss
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <country_of_citizenship> ?e_1 . ?e_1 <pred:name> "Germany" .  ?e <occupation> ?e_2 . ?e_2 <pred:name> "illustrator" .  }
Program:
function: Find
inputs: Germany
function: Relate
dependencies: 0
inputs: country of citizenship
backward
function: FilterConcept
dependencies: 1
inputs: human
function: Find
inputs: illustrator
function: Relate
dependencies: 3
inputs: occupation
backward
function: FilterConcept
dependencies: 4
inputs: human
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: Beck