Mathematicians may take gravitational fields of planets.Logical formLearned from2 sentences. Gravitational interactions may pertain-to major planets.Logical formLearned from2 sentences. Gravitational interactions can be complex.Logical formLearned from2 sentences. Gravitational forces can be in the german economy.Logical formLearned from2 sentences. Heat may be generated by a gravitational collapse.Logical formLearned from2 sentences. A (background star) may be caused by a gravitational field of an object.Logical formLearned from2 sentences. Heat may be generated from a gravitational energy.Logical formLearned from2 sentences. Relation can be to a gravitational attraction of an ocean.Logical formLearned from2 sentences. The moon can be in relation to a gravitational attraction of an ocean.Logical formLearned from2 sentences. A gravitational attraction may pertain-to an ocean.Logical formLearned from2 sentences. A gravitational collapse may produce a black hole.Logical formLearned from2 sentences. Amateurs may take pressure of gravitational forces.Logical formLearned from2 sentences. A gravitational pull can be prodigious.Logical formLearned from2 sentences. Gravitational forces may shape structures.Logical formLearned from2 sentences. Ations can be in a gravitational pull.Logical formLearned from2 sentences.