A (half-time whistle) may approach.Logical formLearned from7 sentences. A whistle may pertain-to missiles.Logical formLearned from7 sentences. A whistle of missiles may be heard in the sky.Logical formLearned from7 sentences. Whistles may undergo blowings.Logical formLearned from7 sentences. Minutes can be before a final whistle.Logical formLearned from7 sentences. A tussle can be after a final whistle.Logical formLearned from6 sentences. A lead can be until a final whistle.Logical formLearned from6 sentences. Whistles may undergo a use.Logical formLearned from6 sentences. A call can be a series of whistles.Logical formLearned from6 sentences. A set can be constituted-of-or-filled-with whistles.Logical formLearned from6 sentences. A (penny whistle) can be wooden.Logical formLearned from6 sentences. A whistle can be raspy.Logical formLearned from6 sentences. A whistle may approach.Logical formLearned from6 sentences. A whistle can be audible.Logical formLearned from6 sentences. Persons may have a whistle.Logical formLearned from6 sentences.