A display can be sad.Logical formLearned from145 sentences. A clown can be sad.Logical formLearned from141 sentences. A kind can be sad.Logical formLearned from140 sentences. An anniversary can be sad.Logical formLearned from140 sentences. A sigh can be sad.Logical formLearned from133 sentences. Words can be sad.Logical formLearned from133 sentences. A female may get sad.Logical formLearned from132 sentences. A soul can be sad.Logical formLearned from131 sentences. Facts can be sad.Logical formLearned from128 sentences. A message can be sad.Logical formLearned from128 sentences. A male may get sad.Logical formLearned from128 sentences. A situation can be sad.Logical formLearned from127 sentences. A memory can be sad.Logical formLearned from127 sentences. A person can be sad for a female.Logical formLearned from124 sentences. An ending can be sad.Logical formLearned from124 sentences.