A person may compete in swimming.Logical formLearned from6 sentences. Some (swimming world championships) can be in a world-city.Logical formLearned from6 sentences. Some butterfly can be at (swimming championships).Logical formLearned from6 sentences. (Swimming authorities) may pertain-to a country.Logical formLearned from6 sentences. Swimming can be at tennis.Logical formLearned from6 sentences. Swimming can be at some wrestling.Logical formLearned from6 sentences. A complex may have some (swimming pools).Logical formLearned from6 sentences. Swimming may be required.Logical formLearned from6 sentences. A male may continue swimming.Logical formLearned from6 sentences. (Swimming lessons) may pertain-to children.Logical formLearned from6 sentences. (World records) can be in swimming.Logical formLearned from6 sentences. Results can be from a (swimming competition).Logical formLearned from6 sentences. A female may continue swimming.Logical formLearned from6 sentences. Some (swimming championships) can be in a country.Logical formLearned from6 sentences. (Swimming pools) can be in a continent.Logical formLearned from6 sentences.