An error can be sad.Logical formLearned from11 sentences. A person can be sad for persons.Logical formLearned from11 sentences. An adventure can be sad.Logical formLearned from11 sentences. A weariness can be sad.Logical formLearned from11 sentences. Cases can be sad.Logical formLearned from11 sentences. A parting can be sad.Logical formLearned from11 sentences. A result can be sad.Logical formLearned from11 sentences. A benchmark can be sad.Logical formLearned from11 sentences. A study can be sad.Logical formLearned from10 sentences. A duet can be sad.Logical formLearned from10 sentences. An aura can be sad.Logical formLearned from10 sentences. Boxes can be sad.Logical formLearned from10 sentences. Birds can be sad.Logical formLearned from10 sentences. Routings can be sad.Logical formLearned from10 sentences. A contradiction can be sad.Logical formLearned from10 sentences.