A celebration can be sad.Logical formLearned from8 sentences. Facial expressions can be sad.Logical formLearned from8 sentences. A person may be made sad.Logical formLearned from8 sentences. A desolation can be sad.Logical formLearned from8 sentences. A stat can be sad.Logical formLearned from8 sentences. Monuments can be sad.Logical formLearned from8 sentences. A deficiency can be sad.Logical formLearned from8 sentences. Shadows can be sad.Logical formLearned from8 sentences. A (love story) can be sad.Logical formLearned from8 sentences. A lamp can be sad.Logical formLearned from8 sentences. Blues can be sad.Logical formLearned from8 sentences. A journal can be sad.Logical formLearned from8 sentences. Cases can be sad.Logical formLearned from8 sentences. An interval can be sad.Logical formLearned from8 sentences. A wonder can be sad.Logical formLearned from8 sentences.