A religion can be compulsory.Logical formLearned from17 sentences. A military duty can be compulsory.Logical formLearned from17 sentences. A (drug testing) can be compulsory.Logical formLearned from17 sentences. A medical treatment can be compulsory.Logical formLearned from17 sentences. An assignment can be compulsory.Logical formLearned from17 sentences. Reductions can be compulsory.Logical formLearned from17 sentences. A (pension scheme) can be compulsory.Logical formLearned from17 sentences. Vaccinations can be compulsory.Logical formLearned from17 sentences. A mediation can be compulsory.Logical formLearned from17 sentences. A system can be compulsory.Logical formLearned from17 sentences. Some students may receive compulsory education.Logical formLearned from16 sentences. (Health checks) can be compulsory.Logical formLearned from16 sentences. A schooling can be compulsory.Logical formLearned from16 sentences. (Retirement ages) can be compulsory.Logical formLearned from16 sentences. Votings can be compulsory.Logical formLearned from16 sentences.