(Riot police) can be with gas.Logical formLearned from11 sentences. Razings may provoke riots.Logical formLearned from11 sentences. (Riot police) may force players off a field.Logical formLearned from11 sentences. Riots may be ravaged.Logical formLearned from11 sentences. Riots can be across a region.Logical formLearned from11 sentences. Riots can be in a male.Logical formLearned from11 sentences. (Riot police) may fend_off mobs.Logical formLearned from11 sentences. Protesters may battle (riot police).Logical formLearned from11 sentences. Riots can be motivated.Logical formLearned from11 sentences. An excuse can be to riot.Logical formLearned from11 sentences. A site can be a scene of riots of gunfire.Logical formLearned from11 sentences. (Riot police) can be on an eve of a round of local elections.Logical formLearned from11 sentences. Police may be dressed in (riot gear).Logical formLearned from11 sentences. A (death toll) can be in riots.Logical formLearned from11 sentences. Riots can be in months.Logical formLearned from11 sentences.