Illicit (drug use) can be constituted-of-or-filled-with some percent.Logical formLearned from4 sentences. Some percent of youths may use an illicit drug.Logical formLearned from4 sentences. A (trading activity) can be illicit.Logical formLearned from4 sentences. Diverters can be illicit.Logical formLearned from4 sentences. Trends can be in illicit (drug use).Logical formLearned from4 sentences. A (trafficking activity) can be illicit.Logical formLearned from4 sentences. A disposal can be illicit.Logical formLearned from4 sentences. A (drug testing) can be illicit.Logical formLearned from4 sentences. Money can be illicit.Logical formLearned from4 sentences. A supplier can be illicit.Logical formLearned from4 sentences. (Fund transfers) can be illicit.Logical formLearned from4 sentences. A decline can be in illicit (drug use).Logical formLearned from4 sentences. (Prevalence estimates) can be for illicit (drug use).Logical formLearned from4 sentences. Units can be illicit.Logical formLearned from4 sentences. Relation can be to illicit drugs.Logical formLearned from4 sentences.