Riots can be daily.Logical formLearned from118 sentences. (Riot police) may use gas.Logical formLearned from118 sentences. Protesters may clash with (riot police).Logical formLearned from117 sentences. A riot can be constituted-of-or-filled-with colors.Logical formLearned from116 sentences. (Riot police) may be surrounded.Logical formLearned from114 sentences. Riots can be large-scale.Logical formLearned from113 sentences. A male can be a riot.Logical formLearned from112 sentences. A riot may pertain-to a world-city.Logical formLearned from112 sentences. Some persons may be killed in riots.Logical formLearned from110 sentences. Some nights can be constituted-of-or-filled-with riots.Logical formLearned from109 sentences. Riots may occur.Logical formLearned from109 sentences. (Race riots) can be deadly.Logical formLearned from108 sentences. Riots can be over (food prices).Logical formLearned from106 sentences. A riot may start.Logical formLearned from106 sentences. Some officers can be in (riot gear).Logical formLearned from104 sentences.