A threshold can be mandatory.Logical formLearned from21 sentences. (Emission caps) can be mandatory.Logical formLearned from21 sentences. A collection can be mandatory.Logical formLearned from21 sentences. An advisement can be mandatory.Logical formLearned from21 sentences. A (student fee) can be mandatory.Logical formLearned from21 sentences. A provision can be mandatory.Logical formLearned from21 sentences. Workshops can be mandatory.Logical formLearned from21 sentences. A (safety testing) can be mandatory.Logical formLearned from21 sentences. A mandatory sentence can be for murder.Logical formLearned from21 sentences. A (news conference) can be mandatory.Logical formLearned from21 sentences. A judge may impose a mandatory sentence.Logical formLearned from21 sentences. An exchange can be mandatory.Logical formLearned from20 sentences. An opponent can be mandatory.Logical formLearned from20 sentences. Lockings can be mandatory.Logical formLearned from20 sentences. Consultation can be mandatory.Logical formLearned from20 sentences.