An economy can be tough.Logical formLearned from1 532 sentences. An one can be tough.Logical formLearned from1 532 sentences. A test can be tough.Logical formLearned from1 520 sentences. A position can be tough.Logical formLearned from1 486 sentences. A part can be tough.Logical formLearned from1 481 sentences. A place can be tough.Logical formLearned from1 441 sentences. An opponent can be tough.Logical formLearned from1 417 sentences. Games can be tough.Logical formLearned from1 400 sentences. A defense can be tough.Logical formLearned from1 392 sentences. A resolution can be tough.Logical formLearned from1 387 sentences. A law can be tough.Logical formLearned from1 296 sentences. An act can be tough.Logical formLearned from1 248 sentences. A market can be tough.Logical formLearned from1 243 sentences. Persons can be tough.Logical formLearned from1 152 sentences. Words can be tough.Logical formLearned from1 134 sentences.