An end may pertain-to a derby.Logical formLearned from11 sentences. A derby can be tough.Logical formLearned from11 sentences. A defeat can be in a derby.Logical formLearned from11 sentences. A derby can be against rivals.Logical formLearned from11 sentences. (Roller derby) may undergo a revival.Logical formLearned from11 sentences. A derby may pertain-to next year.Logical formLearned from11 sentences. Derbies can be easy.Logical formLearned from11 sentences. A male may miss a derby.Logical formLearned from11 sentences. Derbies can be regional.Logical formLearned from11 sentences. A derby can be stormy.Logical formLearned from11 sentences. A derby can be in a world-city.Logical formLearned from11 sentences. (Crowd trouble) can be at a derby.Logical formLearned from11 sentences. A derby can be exciting.Logical formLearned from11 sentences. A derby can be top-flight.Logical formLearned from10 sentences. A person may play (roller derby).Logical formLearned from10 sentences.