A whistle may pertain-to a steamer.Logical formLearned from4 sentences. A whistle can be constituted-of-or-filled-with relief.Logical formLearned from4 sentences. A blast can be from a whistle.Logical formLearned from4 sentences. A river-steamboat can be with a (penny whistle).Logical formLearned from4 sentences. A person may pull a string of a whistle.Logical formLearned from4 sentences. Whistles may pertain-to referee.Logical formLearned from4 sentences. Someone may blow a whistle on a whistle-blower.Logical formLearned from4 sentences. A back can be after a whistle.Logical formLearned from4 sentences. A whistle can be in a hand.Logical formLearned from4 sentences. A whistle may pertain-to a master.Logical formLearned from4 sentences. A (wolf whistle) may be tucked in a (river valley).Logical formLearned from4 sentences. Some whistle may blow.Logical formLearned from4 sentences. Whistles can be blown.Logical formLearned from4 sentences. Whistles can be around necks.Logical formLearned from4 sentences. A final whistle may reduce a country from participant.Logical formLearned from4 sentences.