find the bipropellant rocket with study status and a thrust >/= 7.6832e+06.
(AND spaceflight.bipropellant_rocket_engine (AND (JOIN spaceflight.rocket_engine.status m.03p41dy) (ge spaceflight.rocket_engine.thrust_sea_level 7.6832e+06^^http://www.w3.org/2001/XMLSchema#float)))