Registration can be compulsory.Logical formLearned from34 sentences. A payment can be compulsory.Logical formLearned from34 sentences. A dissertation can be compulsory.Logical formLearned from34 sentences. Requirements can be compulsory.Logical formLearned from34 sentences. A (community service) can be compulsory.Logical formLearned from34 sentences. A routine can be compulsory.Logical formLearned from33 sentences. A (team meeting) can be compulsory.Logical formLearned from33 sentences. Captures can be compulsory.Logical formLearned from32 sentences. A quarantine can be compulsory.Logical formLearned from32 sentences. A programme can be compulsory.Logical formLearned from32 sentences. Compulsory education may undergo an implementation.Logical formLearned from32 sentences. An educational system can be compulsory.Logical formLearned from32 sentences. A section can be compulsory.Logical formLearned from32 sentences. An (education period) can be compulsory.Logical formLearned from31 sentences. Some subjects can be compulsory.Logical formLearned from31 sentences.