Backs can be sturdy.Logical formLearned from7 sentences. Gloves can be sturdy.Logical formLearned from7 sentences. A (balance sheet) can be sturdy.Logical formLearned from7 sentences. A sheet can be sturdy.Logical formLearned from7 sentences. A knot can be sturdy.Logical formLearned from7 sentences. A church can be sturdy.Logical formLearned from7 sentences. A pan can be sturdy.Logical formLearned from7 sentences. A texture can be sturdy.Logical formLearned from7 sentences. (Brick buildings) can be sturdy.Logical formLearned from7 sentences. A start can be sturdy.Logical formLearned from7 sentences. A bullpen can be sturdy.Logical formLearned from7 sentences. A saucepan can be sturdy.Logical formLearned from7 sentences. A mat can be sturdy.Logical formLearned from7 sentences. A skeleton can be sturdy.Logical formLearned from7 sentences. Peace can be sturdy.Logical formLearned from7 sentences.