(Riot police) may be guarded.Logical formLearned from38 sentences. Riots can be clashes.Logical formLearned from38 sentences. Involvement can be in riots.Logical formLearned from38 sentences. Riots may happen.Logical formLearned from37 sentences. (Food riots) can be deadly.Logical formLearned from37 sentences. A wall can be constituted-of-or-filled-with (riot police).Logical formLearned from37 sentences. Riots may start.Logical formLearned from37 sentences. Busloads can be constituted-of-or-filled-with (riot police).Logical formLearned from37 sentences. Large numbers can be constituted-of-or-filled-with (riot police).Logical formLearned from37 sentences. Police can be with (riot shields).Logical formLearned from36 sentences. A (riot act) may be readed.Logical formLearned from36 sentences. A (riot gear) can be black.Logical formLearned from36 sentences. Riots may kill some persons.Logical formLearned from36 sentences. Riots can be across the muslim world.Logical formLearned from36 sentences. Riots may escalate.Logical formLearned from36 sentences.