(Prison guard) may join an (air marshal service).Logical formLearned from1 sentences. A training may pertain-to (sky marshals).Logical formLearned from1 sentences. (Air marshals) may practice techniques.Logical formLearned from1 sentences. Details can be about a job of (air marshals).Logical formLearned from1 sentences. An (air marshal program) may be expanded after attacks.Logical formLearned from1 sentences. A president of an (air marshal group) may file a lawsuit.Logical formLearned from1 sentences. Marshals may do a job with efficiency.Logical formLearned from1 sentences. Precautions may be took by marshals.Logical formLearned from1 sentences. A US-president may send in federal marshals.Logical formLearned from1 sentences. A (security detail) can be constituted-of-or-filled-with federal marshals.Logical formLearned from1 sentences. Federal marshals may tag (baseball players) with subpoenas.Logical formLearned from1 sentences. An official may pertain-to a marshal.Logical formLearned from1 sentences. Marshals may manage security.Logical formLearned from1 sentences. A (task force) may be make_uped of federal marshals.Logical formLearned from1 sentences. A federal marshal may guard a male.Logical formLearned from1 sentences.