A person may bark_up a tree.Logical formLearned from206 sentences. A male may bark_up a tree.Logical formLearned from46 sentences. Persons may bark_up a tree.Logical formLearned from37 sentences. A female may bark_up a tree.Logical formLearned from13 sentences. Everybody may bark_up a tree.Logical formLearned from10 sentences. Persons may bark_up a tree.Logical formLearned from8 sentences. A person may bark_up a tree.Logical formLearned from7 sentences. Physicists may bark_up a tree with a problem.Logical formLearned from7 sentences. Someone may bark_up a tree.Logical formLearned from7 sentences. A person may bark_up a (tree ..).Logical formLearned from5 sentences. A dog may bark_up a storm.Logical formLearned from5 sentences. Protesters may bark_up a tree.Logical formLearned from4 sentences. Lawns may bark_up (tree vegetable varieties).Logical formLearned from3 sentences. Scientists may bark_up a tree.Logical formLearned from3 sentences. A man may bark_up a tree.Logical formLearned from3 sentences.