A (drill string) may be retrieved.Logical formLearned from6 sentences. A (power drill) may undergo a use.Logical formLearned from6 sentences. (Drill instructors) may pertain-to persons.Logical formLearned from6 sentences. A person may find drills.Logical formLearned from6 sentences. A (drill weekend) can be scheduled.Logical formLearned from6 sentences. A (drill pipe) can be with telemetry.Logical formLearned from6 sentences. Connections can be between sections of (drill pipe).Logical formLearned from6 sentences. A length may pertain-to a drill.Logical formLearned from6 sentences. Drills may work.Logical formLearned from6 sentences. Persons may conduct drills.Logical formLearned from6 sentences. A drill can be specialized.Logical formLearned from6 sentences. A duration may pertain-to a drill.Logical formLearned from6 sentences. Drills can be related.Logical formLearned from6 sentences. Some troops may participate in a drill.Logical formLearned from6 sentences. A drill can be heavy-duty.Logical formLearned from6 sentences.