Some trucks can be constituted-of-or-filled-with (riot police).Logical formLearned from9 sentences. Some provinces may be swept by riots.Logical formLearned from9 sentences. A policeman can be in riots.Logical formLearned from9 sentences. (Riot police) may respond with volleys of gas.Logical formLearned from9 sentences. A riot can be motivated.Logical formLearned from9 sentences. Soldiers may advance behind (riot shields).Logical formLearned from9 sentences. A danish newspaper may spark riots.Logical formLearned from9 sentences. (Food riots) may pertain-to year.Logical formLearned from9 sentences. Riot can be against tax.Logical formLearned from9 sentences. (Riot police) may ring an area with rocks.Logical formLearned from9 sentences. Some inmates may be injured in a riot.Logical formLearned from9 sentences. Racial riots may be fuelled by frustration.Logical formLearned from9 sentences. A riot may spread.Logical formLearned from9 sentences. A country may suffer riots.Logical formLearned from9 sentences. Dozens of (riot police) may dot a road from an airport.Logical formLearned from9 sentences.