Riots may erupt on a month.Logical formLearned from8 sentences. A (race riot) can be violent.Logical formLearned from8 sentences. Riots may be killed.Logical formLearned from8 sentences. Riots may have an effect.Logical formLearned from8 sentences. Some (race riots) can be in a world-city.Logical formLearned from8 sentences. A riot can be all-out.Logical formLearned from8 sentences. A middle may pertain-to a riot.Logical formLearned from8 sentences. Some (riot police) may arrive.Logical formLearned from8 sentences. A victim may pertain-to riots.Logical formLearned from8 sentences. Riots can be flat.Logical formLearned from8 sentences. (Food riots) can be in a world-city.Logical formLearned from8 sentences. Religious riots can be in a country.Logical formLearned from8 sentences. A response can be to some riots.Logical formLearned from8 sentences. (Student riots) may pertain-to a world-city.Logical formLearned from8 sentences. Discontent may lead to riots.Logical formLearned from8 sentences.