Gangs may undergo involvement.Logical formLearned from23 sentences. Gangs can be masked.Logical formLearned from23 sentences. (Gang members) may attack (police stations).Logical formLearned from23 sentences. A (gang activity) can be violent.Logical formLearned from23 sentences. A crackdown can be on gangs.Logical formLearned from23 sentences. Gangs can be constituted-of-or-filled-with (drug traffickers).Logical formLearned from23 sentences. Police may blame gangs.Logical formLearned from23 sentences. Members may pertain-to a (motorcycle gang).Logical formLearned from23 sentences. History may pertain-to a gang.Logical formLearned from23 sentences. A (street gang) can be murderous.Logical formLearned from23 sentences. A branch may pertain-to a gang.Logical formLearned from23 sentences. Gangs can be for ransom.Logical formLearned from23 sentences. Assaults can be by gangs.Logical formLearned from23 sentences. Members may pertain-to gangs.Logical formLearned from23 sentences. A gang may undergo a capture.Logical formLearned from22 sentences.