An attribute can be mandatory.Logical formLearned from38 sentences. A (meal plan) can be mandatory.Logical formLearned from38 sentences. Charges can be mandatory.Logical formLearned from38 sentences. Screenings can be mandatory.Logical formLearned from38 sentences. A fortification can be mandatory.Logical formLearned from38 sentences. An one can be mandatory.Logical formLearned from38 sentences. Insurance can be mandatory.Logical formLearned from38 sentences. An information can be mandatory.Logical formLearned from38 sentences. A repatriation can be mandatory.Logical formLearned from38 sentences. A (life prison term) can be mandatory.Logical formLearned from38 sentences. (Reliability standards) can be mandatory.Logical formLearned from38 sentences. A layover can be mandatory.Logical formLearned from38 sentences. A (reporting law) can be mandatory.Logical formLearned from38 sentences. A check can be mandatory.Logical formLearned from38 sentences. An application can be mandatory.Logical formLearned from37 sentences.