(Chemical rocket thrusters) may be used by spacecrafts.Logical formLearned from4 sentences. A rocket may be topped with a spacecraft.Logical formLearned from4 sentences. A country may remain a sole source of spacecraft.Logical formLearned from4 sentences. Bits may pertain-to a spacecraft.Logical formLearned from4 sentences. A side of a spacecraft can be a focus of suspicion.Logical formLearned from4 sentences. Communication may be lost with a spacecraft.Logical formLearned from4 sentences. Communicator may address a spacecraft.Logical formLearned from4 sentences. An (indistinct call) can be from a spacecraft.Logical formLearned from4 sentences. A (spacecraft communication center) may pertain-to a US-president.Logical formLearned from4 sentences. Parts can be from spacecraft.Logical formLearned from4 sentences. A streak may pertain-to a spacecraft.Logical formLearned from4 sentences. Applications can be for spacecraft.Logical formLearned from4 sentences. A spacecraft may be docked with an international (space station).Logical formLearned from4 sentences. Pictures may be took by spacecraft.Logical formLearned from4 sentences. A spacecraft may serve as a lifeboat.Logical formLearned from4 sentences.