what engine category does a ramjet belong in?
Entity Entity Entity Entity Entity Entity Entity Entity Entity
m.08_jm5 m.02psv8_ m.02zf9_ m.04gp6b8 m.0855s35 m.0855s3m m.0855s3y m.0855s46 m.0b138l
Kronach Lorin Bristol Odin SABRE Marquardt RJ43 GIRD-08 ramjet engine GIRD-04 ramjet engine DM-2 ramjet engine DM-4 ramjet engine Bristol Thor
class entity
engineering.engine m.06kgf
engineering.engine engineering.engine_category
Engine Ramjet
none none
engineering.engine.category
Category
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 (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :engineering.engine . 
VALUES ?x1 { :m.06kgf } 
?x0 :engineering.engine.category ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND engineering.engine (JOIN engineering.engine.category m.06kgf))