Gas can be shallow.Logical formLearned from16 sentences. Foxholes can be shallow.Logical formLearned from16 sentences. Harbors can be shallow.Logical formLearned from16 sentences. An excuse can be shallow.Logical formLearned from16 sentences. A stunt can be shallow.Logical formLearned from16 sentences. A gorge can be shallow.Logical formLearned from15 sentences. Gullies can be shallow.Logical formLearned from15 sentences. A shallow sea can be warm.Logical formLearned from15 sentences. A pocket can be shallow.Logical formLearned from15 sentences. An intrusion can be shallow.Logical formLearned from15 sentences. Zones can be shallow.Logical formLearned from15 sentences. A coral reef can be shallow.Logical formLearned from15 sentences. Observations can be shallow.Logical formLearned from15 sentences. (Methane deposits) can be shallow.Logical formLearned from15 sentences. A cut can be shallow.Logical formLearned from15 sentences.