Some riots can be in a world-city.Logical formLearned from60 sentences. (Riot police) can be in a world-city.Logical formLearned from59 sentences. Agents can be in (riot gear).Logical formLearned from59 sentences. Riots may pertain-to 1960s.Logical formLearned from59 sentences. Demonstrators may clash with (riot police).Logical formLearned from59 sentences. A role can be in riots.Logical formLearned from59 sentences. A night can be constituted-of-or-filled-with riots.Logical formLearned from59 sentences. Involvement can be in riots.Logical formLearned from58 sentences. A riot can be on a month.Logical formLearned from58 sentences. Part can be in a riot.Logical formLearned from58 sentences. Some truckloads can be constituted-of-or-filled-with (riot police).Logical formLearned from58 sentences. (Riot police) may clash with protesters.Logical formLearned from58 sentences. Riots can be full-scale.Logical formLearned from57 sentences. Riots may erupt in a world-city.Logical formLearned from57 sentences. Victims may pertain-to riots.Logical formLearned from57 sentences.