Issues can be complex.Logical formLearned from10 972 sentences. Problems can be complex.Logical formLearned from7 385 sentences. A system can be complex.Logical formLearned from6 845 sentences. A process can be complex.Logical formLearned from5 563 sentences. An issue can be complex.Logical formLearned from4 282 sentences. A world can be complex.Logical formLearned from3 288 sentences. A relationship can be complex.Logical formLearned from3 146 sentences. A set can be complex.Logical formLearned from3 117 sentences. A nature can be complex.Logical formLearned from2 889 sentences. A problem can be complex.Logical formLearned from2 882 sentences. A structure can be complex.Logical formLearned from2 642 sentences. A task can be complex.Logical formLearned from2 633 sentences. Structures can be complex.Logical formLearned from2 621 sentences. Tasks can be complex.Logical formLearned from2 537 sentences. Interactions can be complex.Logical formLearned from2 536 sentences.