A pile can be sad.Logical formLearned from29 sentences. A glance can be sad.Logical formLearned from29 sentences. Patients can be sad.Logical formLearned from29 sentences. A confession can be sad.Logical formLearned from29 sentences. A litany can be sad.Logical formLearned from29 sentences. An idea can be sad.Logical formLearned from29 sentences. Robots can be sad.Logical formLearned from28 sentences. A person can be sad.Logical formLearned from28 sentences. A human being can be sad.Logical formLearned from28 sentences. A bunny can be sad.Logical formLearned from28 sentences. Poetry can be sad.Logical formLearned from28 sentences. A pattern can be sad.Logical formLearned from28 sentences. A land can be sad.Logical formLearned from28 sentences. A person may mean sad.Logical formLearned from28 sentences. A daughter can be sad.Logical formLearned from28 sentences.