A stage may take riders.Logical formLearned from28 sentences. (Bus riders) may undergo a survey.Logical formLearned from28 sentences. Riders may start.Logical formLearned from28 sentences. A rider can be on a horse.Logical formLearned from28 sentences. Riders may compete.Logical formLearned from28 sentences. Riders may start.Logical formLearned from28 sentences. Some riders can be from a team.Logical formLearned from28 sentences. Some riders can be from a country.Logical formLearned from27 sentences. A rider can be mysterious.Logical formLearned from27 sentences. A rider may sit.Logical formLearned from27 sentences. A person may have a rider.Logical formLearned from27 sentences. A male can be among riders.Logical formLearned from27 sentences. Riders may pertain-to a postal-service.Logical formLearned from27 sentences. A rider may pertain-to a race.Logical formLearned from27 sentences. A male can be (former motorcycle speedway rider).Logical formLearned from26 sentences.