Equipment can be mandatory.Logical formLearned from56 sentences. A level can be mandatory.Logical formLearned from55 sentences. A day can be mandatory.Logical formLearned from55 sentences. Military service can be mandatory.Logical formLearned from55 sentences. An update can be mandatory.Logical formLearned from55 sentences. A vacation can be mandatory.Logical formLearned from55 sentences. Days can be mandatory.Logical formLearned from54 sentences. Reporting can be mandatory.Logical formLearned from54 sentences. A (travel ban) can be mandatory.Logical formLearned from54 sentences. A (training program) can be mandatory.Logical formLearned from53 sentences. An (exclusion provision) can be mandatory.Logical formLearned from53 sentences. A resolution can be mandatory.Logical formLearned from53 sentences. Education can be mandatory.Logical formLearned from53 sentences. A (pit stop) can be mandatory.Logical formLearned from52 sentences. Credit can be mandatory.Logical formLearned from52 sentences.