A riot can be by laborers.Logical formLearned from15 sentences. Riots can be in the south.Logical formLearned from15 sentences. Days can be after riots.Logical formLearned from15 sentences. (Street riots) may be linked to a soft revolution.Logical formLearned from15 sentences. A month may mark an anniversary of riots.Logical formLearned from15 sentences. (Riot police) may guard a building.Logical formLearned from15 sentences. (Riot police) can be in uniforms.Logical formLearned from15 sentences. Some (riot police) can be with shields.Logical formLearned from15 sentences. Riots can be in (housing projects).Logical formLearned from15 sentences. A riot may last some hours.Logical formLearned from15 sentences. Riots can be rare.Logical formLearned from15 sentences. Hundreds of (riot police) may watch.Logical formLearned from15 sentences. (Riot police) can be in (body armor).Logical formLearned from15 sentences. A riot can be by villagers.Logical formLearned from15 sentences. A country may deploy (riot police).Logical formLearned from15 sentences.