the game boy line had how many key computer designers?
Value
1
class entity
computer.computer_designer m.034v2
computer.computer_designer computer.computer
Computer Designer Game Boy line
count none
computer.computer.key_designers
Key Designers
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (COUNT(?x0) AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :computer.computer_designer . 
VALUES ?x1 { :m.034v2 } 
?x1 :computer.computer.key_designers ?x0 . 
FILTER ( ?x0 != ?x1  )
}
}
(COUNT (AND computer.computer_designer (JOIN (R computer.computer.key_designers) m.034v2)))