A world-city may enter orbit.Logical formLearned from4 sentences. A rocket may launch into orbit.Logical formLearned from4 sentences. Some (spy satellites) can be in orbit.Logical formLearned from4 sentences. A placing can be into orbit.Logical formLearned from4 sentences. Solar radiation can be in orbit.Logical formLearned from4 sentences. An orbit can be as a predecessor.Logical formLearned from4 sentences. An orbit can be elliptical.Logical formLearned from4 sentences. Orbit can be for missions.Logical formLearned from4 sentences. Orbit can be on a mission.Logical formLearned from4 sentences. A (space probe) may go into orbit.Logical formLearned from4 sentences. A craft can be into orbit.Logical formLearned from4 sentences. Fluids can be in orbit.Logical formLearned from4 sentences. A polar orbit can be egg-shaped.Logical formLearned from4 sentences. Placement can be in orbit.Logical formLearned from4 sentences. A mothership may be placed in orbit.Logical formLearned from4 sentences.