A penalty can be mandatory.Logical formLearned from172 sentences. Guidelines can be mandatory.Logical formLearned from172 sentences. Regulations can be mandatory.Logical formLearned from171 sentences. A language can be mandatory.Logical formLearned from171 sentences. A term can be mandatory.Logical formLearned from170 sentences. A nature can be mandatory.Logical formLearned from166 sentences. A (waiting period) can be mandatory.Logical formLearned from164 sentences. A (detention policy) can be mandatory.Logical formLearned from163 sentences. A mandatory sentence can be constituted-of-or-filled-with life.Logical formLearned from162 sentences. A rule can be mandatory.Logical formLearned from160 sentences. An information can be mandatory.Logical formLearned from159 sentences. A ban can be mandatory.Logical formLearned from154 sentences. A (safety standard) can be mandatory.Logical formLearned from152 sentences. A labeling can be mandatory.Logical formLearned from152 sentences. An input can be mandatory.Logical formLearned from150 sentences.