(Rest periods) can be mandatory.Logical formLearned from27 sentences. Contracts can be mandatory.Logical formLearned from27 sentences. Transfers can be mandatory.Logical formLearned from27 sentences. An imposition can be mandatory.Logical formLearned from27 sentences. A support can be mandatory.Logical formLearned from27 sentences. An (arbitration clause) can be mandatory.Logical formLearned from27 sentences. An activity can be mandatory.Logical formLearned from27 sentences. (Seat-belt laws) can be mandatory.Logical formLearned from27 sentences. Functions can be mandatory.Logical formLearned from27 sentences. An execution can be mandatory.Logical formLearned from26 sentences. A removal can be mandatory.Logical formLearned from26 sentences. Prayers can be mandatory.Logical formLearned from26 sentences. Schemes can be mandatory.Logical formLearned from26 sentences. A section can be mandatory.Logical formLearned from26 sentences. A jurisdiction can be mandatory.Logical formLearned from26 sentences.