A boy can be sad.Logical formLearned from165 sentences. A development can be sad.Logical formLearned from163 sentences. A heart can be sad.Logical formLearned from161 sentences. Circumstances can be sad.Logical formLearned from161 sentences. A figure can be sad.Logical formLearned from160 sentences. Parts can be sad.Logical formLearned from159 sentences. A decline can be sad.Logical formLearned from157 sentences. A male may sound sad.Logical formLearned from156 sentences. A face can be sad.Logical formLearned from155 sentences. A lack can be sad.Logical formLearned from155 sentences. A turn can be sad.Logical formLearned from155 sentences. A week can be sad.Logical formLearned from155 sentences. A person can be sad for a male.Logical formLearned from151 sentences. An existence can be sad.Logical formLearned from148 sentences. A piece can be sad.Logical formLearned from146 sentences.