Question: Who are the people of the House of Orange-Nassau?
Choices:
Charles, Prince of Wales
Akon
Max Fleischer
Sylvester Stallone
Theodore Roosevelt
Alexander
Richard Gere
Eleanor Roosevelt
William Henry Harrison
Dean Cain
Answer: Alexander
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <family> ?e_1 . ?e_1 <pred:name> "House of Orange-Nassau" .   }
Program:
function: Find
inputs: House of Orange-Nassau
function: Relate
dependencies: 0
inputs: family
backward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2