Chairs can be sturdy.Logical formLearned from57 sentences. A condition can be sturdy.Logical formLearned from55 sentences. A fellow can be sturdy.Logical formLearned from55 sentences. Branches can be sturdy.Logical formLearned from55 sentences. An oak can be sturdy.Logical formLearned from54 sentences. (Walking shoes) can be sturdy.Logical formLearned from54 sentences. Materials can be sturdy.Logical formLearned from54 sentences. Plants can be sturdy.Logical formLearned from51 sentences. A bed can be sturdy.Logical formLearned from50 sentences. Structures can be sturdy.Logical formLearned from49 sentences. A door can be sturdy.Logical formLearned from49 sentences. A person can be sturdy.Logical formLearned from49 sentences. A stock can be sturdy.Logical formLearned from48 sentences. A (coffee table) can be sturdy.Logical formLearned from48 sentences. Buildings can be sturdy.Logical formLearned from48 sentences.