A well can be brown.Logical formLearned from20 sentences. Wells may be sunken.Logical formLearned from20 sentences. Wells may undergo a poisoning.Logical formLearned from20 sentences. (Oil wells) may undergo destruction.Logical formLearned from20 sentences. Some wells may be tested.Logical formLearned from20 sentences. A well can be clear.Logical formLearned from20 sentences. A group can be constituted-of-or-filled-with wells.Logical formLearned from20 sentences. Well may pertain-to a country.Logical formLearned from20 sentences. Mud may be push_downed through a top of a well.Logical formLearned from20 sentences. A (blowout preventer) may seal a (well pipe).Logical formLearned from20 sentences. A well may spew oil.Logical formLearned from20 sentences. (Well heads) can be damaged.Logical formLearned from20 sentences. (Oil wells) may pertain-to persons.Logical formLearned from20 sentences. A section may pertain-to a well.Logical formLearned from19 sentences. Wells may undergo a closure.Logical formLearned from19 sentences.