A lilt can be sad.Logical formLearned from2 sentences. A philanderer can be sad.Logical formLearned from2 sentences. A synchronicity can be sad.Logical formLearned from2 sentences. A (couch potato) can be sad.Logical formLearned from2 sentences. Haikus can be sad.Logical formLearned from2 sentences. A niche can be sad.Logical formLearned from2 sentences. Art can be sad.Logical formLearned from2 sentences. A man may go_away sad.Logical formLearned from2 sentences. Laughter may sound sad.Logical formLearned from2 sentences. A person can be sad about leaving a ship.Logical formLearned from2 sentences. A respect can be sad.Logical formLearned from2 sentences. A fact can be sad to a person.Logical formLearned from2 sentences. A flight can be sad.Logical formLearned from2 sentences. A no-one can be sad.Logical formLearned from2 sentences. Drones can be sad.Logical formLearned from2 sentences.