A gang of youths may attack a home.Logical formLearned from12 sentences. An underworld can be constituted-of-or-filled-with gangs.Logical formLearned from12 sentences. Gangs can be constituted-of-or-filled-with anarchists.Logical formLearned from12 sentences. Gangs may be backed by (extremist groups).Logical formLearned from12 sentences. A (dissident gang) may pertain-to a male.Logical formLearned from12 sentences. Arson can be by gangs.Logical formLearned from12 sentences. A crackdown can be on gangs.Logical formLearned from12 sentences. An investigation can be into a gang.Logical formLearned from12 sentences. Gangs can be in (raiding houses).Logical formLearned from12 sentences. A crackdown can be on (drug gangs).Logical formLearned from12 sentences. A gang may be paid.Logical formLearned from12 sentences. A gang may be linked to a (drug cartel).Logical formLearned from12 sentences. A gang may steal.Logical formLearned from12 sentences. (Biker gangs) can be criminal.Logical formLearned from12 sentences. An (underworld war) can be between (drug gangs).Logical formLearned from12 sentences.