A signature can be gravitational.Logical formLearned from19 sentences. Stress can be gravitational.Logical formLearned from19 sentences. A force can be gravitational.Logical formLearned from19 sentences. A gravitational field can be strong.Logical formLearned from19 sentences. Gravitational radiation may undergo a detection.Logical formLearned from19 sentences. An amplification can be gravitational.Logical formLearned from19 sentences. A gravitational field may pertain-to the earth.Logical formLearned from18 sentences. A cause can be a gravitational attraction of matter.Logical formLearned from18 sentences. A challenge can be gravitational.Logical formLearned from18 sentences. An action can be gravitational.Logical formLearned from18 sentences. A strength can be gravitational.Logical formLearned from18 sentences. A sphere can be gravitational.Logical formLearned from18 sentences. Water can be gravitational.Logical formLearned from18 sentences. A gravitational attraction may pertain-to a matter.Logical formLearned from18 sentences. A signal can be gravitational.Logical formLearned from17 sentences.