Question: What mechanical wave is associated with Dir en grey and comes from Japan?
Choices: psychedelic trance
music of Japan
doom metal
glam rock
gothic metal
ambient music
melodic death metal
country pop
progressive house music
chiptune
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "mechanical wave" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Dir en grey" .  ?e <country_of_origin> ?e_2 . ?e_2 <pred:name> "Japan" .  }
Program:
function: Find
inputs: Dir en grey
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: mechanical wave
function: Find
inputs: Japan
function: Relate
dependencies: 3
inputs: country of origin
backward
function: FilterConcept
dependencies: 4
inputs: mechanical wave
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: music of Japan