An (iron wine rack) can be sturdy.Logical formLearned from4 sentences. A trailer can be sturdy.Logical formLearned from4 sentences. An (aluminum chassis) can be sturdy.Logical formLearned from4 sentences. A (filing cabinet) can be sturdy.Logical formLearned from4 sentences. (Steel legs) can be sturdy.Logical formLearned from4 sentences. A (storage case) can be sturdy.Logical formLearned from4 sentences. A (metal desk) can be sturdy.Logical formLearned from4 sentences. Cabinets can be sturdy.Logical formLearned from4 sentences. (Metal chairs) can be sturdy.Logical formLearned from4 sentences. A black metal can be sturdy.Logical formLearned from4 sentences. An (aluminum deck) can be sturdy.Logical formLearned from4 sentences. A cake can be sturdy.Logical formLearned from4 sentences. An (end table) can be sturdy.Logical formLearned from4 sentences. A (sandbag wall) can be sturdy.Logical formLearned from4 sentences. A guitar can be sturdy.Logical formLearned from4 sentences.