A telescope can be gravitational.Logical formLearned from5 sentences. A paper may present an introduction to a theory of gravitational waves.Logical formLearned from5 sentences. An introduction can be to a theory of gravitational waves.Logical formLearned from5 sentences. Gravitational attraction can be strong.Logical formLearned from5 sentences. A gravitational collapse can be sudden.Logical formLearned from5 sentences. Gravitational waves can be in the universe.Logical formLearned from5 sentences. Confines can be gravitational.Logical formLearned from5 sentences. A gravitational wave may pass.Logical formLearned from5 sentences. Gravitational forces can be strong.Logical formLearned from5 sentences. A result can be constituted-of-or-filled-with gravitational collapse.Logical formLearned from5 sentences. Gravitational potential energy may undergo a conversion.Logical formLearned from5 sentences. A response can be gravitational.Logical formLearned from5 sentences. A wake can be gravitational.Logical formLearned from5 sentences. Differences can be in gravitational force.Logical formLearned from5 sentences. A propulsion can be gravitational.Logical formLearned from5 sentences.