Workers may be trapped.Logical formLearned from37 sentences. Some workers may have difficulty.Logical formLearned from37 sentences. A range can be constituted-of-or-filled-with (railway workers).Logical formLearned from37 sentences. Hundreds can be constituted-of-or-filled-with (aid workers).Logical formLearned from37 sentences. Workers can be constituted-of-or-filled-with companies.Logical formLearned from37 sentences. Workers may return to a country.Logical formLearned from37 sentences. A group can be constituted-of-or-filled-with (oil workers).Logical formLearned from37 sentences. (State workers) can be retired.Logical formLearned from37 sentences. Some percent can be constituted-of-or-filled-with (government workers).Logical formLearned from37 sentences. (Rescue workers) may search for victims.Logical formLearned from37 sentences. (Field workers) may pertain-to an international-political-entity.Logical formLearned from37 sentences. Clashes can be between workers.Logical formLearned from37 sentences. Workers can be at a (nuclear plant).Logical formLearned from37 sentences. Workers may pertain-to a party.Logical formLearned from37 sentences. Pictures may show workers.Logical formLearned from37 sentences.