A whistle may pertain-to an umpire.Logical formLearned from4 sentences. A whistle can be constituted-of-or-filled-with wind.Logical formLearned from4 sentences. Whistles can be underwater.Logical formLearned from4 sentences. A male may hear a whistle of bullets.Logical formLearned from4 sentences. A whistle may pertain-to trains.Logical formLearned from4 sentences. A scream may pertain-to a whistle.Logical formLearned from4 sentences. A string may pertain-to a whistle.Logical formLearned from4 sentences. A (penny whistle) may be attached.Logical formLearned from4 sentences. A whistle can be constituted-of-or-filled-with triumph.Logical formLearned from4 sentences. A (silver whistle) may pertain-to a male.Logical formLearned from4 sentences. A whistle can be low-pitched.Logical formLearned from4 sentences. A (whistle blower) can be would-be.Logical formLearned from4 sentences. A pitch may pertain-to a whistle.Logical formLearned from4 sentences. Whistle of a sword may promise a female.Logical formLearned from4 sentences. Persons may hear a whistle from a fife.Logical formLearned from4 sentences.