A question can be compulsory.Logical formLearned from24 sentences. A chapel can be compulsory.Logical formLearned from24 sentences. (Union dues) can be compulsory.Logical formLearned from24 sentences. (Purchase powers) can be compulsory.Logical formLearned from24 sentences. An order can be compulsory.Logical formLearned from24 sentences. A sale can be compulsory.Logical formLearned from24 sentences. An abortion can be compulsory.Logical formLearned from24 sentences. A (dance section) can be compulsory.Logical formLearned from24 sentences. An introduction can be compulsory.Logical formLearned from24 sentences. (Core modules) can be compulsory.Logical formLearned from23 sentences. A (process clause) can be compulsory.Logical formLearned from23 sentences. An act can be compulsory.Logical formLearned from23 sentences. A field can be compulsory.Logical formLearned from23 sentences. An evacuation can be compulsory.Logical formLearned from23 sentences. A person can be compulsory.Logical formLearned from23 sentences.