Gravity can be a problem.Logical formLearned from11 sentences. An option can be present with gravity.Logical formLearned from11 sentences. A person may think about gravity.Logical formLearned from11 sentences. A gravity may mean that something-is-the-case.Logical formLearned from11 sentences. Persons may have a theory of gravity.Logical formLearned from11 sentences. A gravity may pertain-to a responsibility.Logical formLearned from11 sentences. A gravity may pertain-to a (climate threat).Logical formLearned from11 sentences. A gravity may pertain-to a spill.Logical formLearned from11 sentences. Persons may understand a gravity of a (climate threat).Logical formLearned from11 sentences. (Gravity fields) may pertain-to the moon.Logical formLearned from11 sentences. A gravity may pertain-to incidents.Logical formLearned from10 sentences. A force may be exerted by gravity.Logical formLearned from10 sentences. A gravity can be personal.Logical formLearned from10 sentences. A (gravity drive) may pertain-to a ship.Logical formLearned from10 sentences. A specific gravity can be submerged.Logical formLearned from10 sentences.