A strength may pertain-to a gravitational interaction.Logical formLearned from2 sentences. A gravitational force can be between an object.Logical formLearned from2 sentences. A celestial body can be with a gravitational field.Logical formLearned from2 sentences. A gravitational field can be given.Logical formLearned from2 sentences. Gravitational collapse can be a fall of a body.Logical formLearned from2 sentences. An increase can be in gravitational forces.Logical formLearned from2 sentences. A gravitational field can be black.Logical formLearned from2 sentences. An effect can be gravitational.Logical formLearned from2 sentences. Properties may pertain-to a gravitational field.Logical formLearned from2 sentences. Gravitational forces can be combined.Logical formLearned from2 sentences. A vacuum can be gravitational.Logical formLearned from2 sentences. Some asteroids may be joined by gravitational attraction.Logical formLearned from2 sentences. A gravitational field can be parallel.Logical formLearned from2 sentences. Light may escape a gravitational field.Logical formLearned from2 sentences. Inertial mass can be equal to gravitational mass.Logical formLearned from2 sentences.