A fan may blow a whistle.Logical formLearned from3 sentences. Whistles may pertain-to ships.Logical formLearned from3 sentences. A (whistle maker) may pertain-to a US-city.Logical formLearned from3 sentences. A whistle can be a tool.Logical formLearned from3 sentences. Whistles can be rare.Logical formLearned from3 sentences. (Pea whistles) can be round.Logical formLearned from3 sentences. A male may make whistles.Logical formLearned from3 sentences. Whistles can be rich.Logical formLearned from3 sentences. A whistle can be enough.Logical formLearned from3 sentences. A whistle can be in a background.Logical formLearned from3 sentences. Response can be to a whistle.Logical formLearned from3 sentences. Referees may put whistles.Logical formLearned from3 sentences. A whistle may be used.Logical formLearned from3 sentences. Calls may include a whistle.Logical formLearned from3 sentences. A male may blow whistles.Logical formLearned from3 sentences.