Question: what rocket engine designer designs a bipropellant rocket engine with rp-1 and gas-generator cycle?
Topic entities:
Gas-generator cycle: m.04qqvv
RP-1: m.021vvd
Logical form: (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))))
Actions:
get_relations(m.04qqvv)
get_neighbors(m.04qqvv,spaceflight.rocket_engine_cycle.rocket_engines)
get_relations(m.021vvd)
get_neighbors(m.021vvd,spaceflight.rocket_engine_fuel.rocket_engines)
intersection(#0,#1)
get_relations(#2)
get_neighbors(#2,spaceflight.rocket_engine.designed_by)
Answer:
answer_argument: m.03fkyw
entity_name: SpaceX
answer_argument: m.01vhl6
entity_name: Rocketdyne