A relationship can be serious.Logical formLearned from4 976 sentences. Doubts can be serious.Logical formLearned from4 929 sentences. (Side effects) can be serious.Logical formLearned from4 762 sentences. Persons can be serious.Logical formLearned from4 697 sentences. Challenges can be serious.Logical formLearned from4 673 sentences. (Health problems) can be serious.Logical formLearned from4 253 sentences. Charges can be serious.Logical formLearned from4 235 sentences. A discussion can be serious.Logical formLearned from4 117 sentences. A situation can be serious.Logical formLearned from4 115 sentences. Work can be serious.Logical formLearned from4 091 sentences. Cases can be serious.Logical formLearned from3 893 sentences. Implications can be serious.Logical formLearned from3 886 sentences. A crisis can be serious.Logical formLearned from3 861 sentences. A look can be serious.Logical formLearned from3 810 sentences. A situation can be serious.Logical formLearned from3 774 sentences.