A whistle may signal a shift.Logical formLearned from3 sentences. A person may blow a (train whistle).Logical formLearned from3 sentences. A (train whistle) may sound.Logical formLearned from3 sentences. Whistles may play.Logical formLearned from3 sentences. Whistles can be in a world-city.Logical formLearned from3 sentences. Whistles may rely on recognition of faces.Logical formLearned from3 sentences. Action can be after a whistle.Logical formLearned from3 sentences. Whistles may stop play.Logical formLearned from3 sentences. Whistles may start.Logical formLearned from3 sentences. Tugboats may blast whistles.Logical formLearned from3 sentences. A language can be constituted-of-or-filled-with whistles.Logical formLearned from3 sentences. A net can be after a whistle.Logical formLearned from3 sentences. A (train whistle) may undergo an imitation.Logical formLearned from3 sentences. A (train whistle) can be in sleep.Logical formLearned from3 sentences. A whistle can be a noise.Logical formLearned from3 sentences.