Persons may drill wells.Logical formLearned from127 sentences. Some holes may be drilled.Logical formLearned from116 sentences. A person may drill a hole.Logical formLearned from115 sentences. Margin may drill.Logical formLearned from109 sentences. Step may drill.Logical formLearned from109 sentences. Holes may be drilled.Logical formLearned from101 sentences. A company may be drilled.Logical formLearned from91 sentences. A person may drill holes.Logical formLearned from89 sentences. Oil may drill in a us-state.Logical formLearned from78 sentences. Drill may drill.Logical formLearned from72 sentences. Wells may be drilled.Logical formLearned from65 sentences. A male may drill.Logical formLearned from65 sentences. Some (relief wells) may be drilled.Logical formLearned from58 sentences. Workers may be drilled.Logical formLearned from57 sentences. Rescuers may be drilled.Logical formLearned from57 sentences.