what rocket engine designer designs a bipropellant rocket engine with rp-1 and gas-generator cycle?
Entity Entity
m.03fkyw m.01vhl6
SpaceX Rocketdyne
class class entity entity
spaceflight.rocket_engine_designer spaceflight.bipropellant_rocket_engine m.04qqvv m.021vvd
spaceflight.rocket_engine_designer spaceflight.bipropellant_rocket_engine spaceflight.rocket_engine_cycle spaceflight.rocket_engine_fuel
Rocket engine designer Bipropellant rocket engine Gas-generator cycle RP-1
none none none none
spaceflight.rocket_engine_designer.rocket_engines spaceflight.rocket_engine_cycle.rocket_engines spaceflight.rocket_engine_fuel.rocket_engines
Rocket engines Rocket engines Rocket engines
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 :spaceflight.rocket_engine_designer . 
?x1 :type.object.type :spaceflight.bipropellant_rocket_engine . 
VALUES ?x2 { :m.04qqvv } 
VALUES ?x3 { :m.021vvd } 
?x0 :spaceflight.rocket_engine_designer.rocket_engines ?x1 . 
?x2 :spaceflight.rocket_engine_cycle.rocket_engines ?x1 . 
?x3 :spaceflight.rocket_engine_fuel.rocket_engines ?x1 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x0 != ?x3 && ?x1 != ?x2 && ?x1 != ?x3 && ?x2 != ?x3  )
}
}
(AND spaceflight.rocket_engine_designer (JOIN spaceflight.rocket_engine_designer.rocket_engines (AND (JOIN (R spaceflight.rocket_engine_cycle.rocket_engines) m.04qqvv) (JOIN (R spaceflight.rocket_engine_fuel.rocket_engines) m.021vvd))))