A person may practice some hours.Logical formLearned from49 sentences. A person may lose hours.Logical formLearned from49 sentences. Some hours can be for music.Logical formLearned from49 sentences. Some (hour flight) can be from a US-city.Logical formLearned from49 sentences. Persons may operate on some hours.Logical formLearned from49 sentences. A hour can be twilight.Logical formLearned from49 sentences. Persons may take a hour.Logical formLearned from49 sentences. A show may last some hours.Logical formLearned from49 sentences. Hours can be stressful.Logical formLearned from49 sentences. A ride may take some hours.Logical formLearned from49 sentences. Hours may pertain-to a library.Logical formLearned from49 sentences. A hour can be after sunrise.Logical formLearned from49 sentences. Persons may spend a half hour.Logical formLearned from49 sentences. Some hours can be for a person.Logical formLearned from49 sentences. Hours can be brutal.Logical formLearned from49 sentences.