A plant can be sad.Logical formLearned from6 sentences. An old world can be sad.Logical formLearned from6 sentences. Shapes can be sad.Logical formLearned from6 sentences. A demeanour can be sad.Logical formLearned from6 sentences. Considerings can be sad.Logical formLearned from6 sentences. A person can be sad for a while.Logical formLearned from6 sentences. A person can be sad for children.Logical formLearned from6 sentences. A human can be sad.Logical formLearned from6 sentences. An atm can be sad.Logical formLearned from6 sentences. A hurt can be sad.Logical formLearned from6 sentences. A tat can be sad.Logical formLearned from6 sentences. A bar can be sad.Logical formLearned from6 sentences. Years can be sad.Logical formLearned from6 sentences. An one may look sad.Logical formLearned from6 sentences. Strings can be sad.Logical formLearned from6 sentences.