A grader can be hard.Logical formLearned from46 sentences. A hard drive can be solid-state.Logical formLearned from46 sentences. Seats can be hard.Logical formLearned from46 sentences. A skill can be hard.Logical formLearned from46 sentences. A volley can be hard.Logical formLearned from46 sentences. A cross can be hard.Logical formLearned from46 sentences. A disease may remain hard.Logical formLearned from46 sentences. A country may try hard.Logical formLearned from46 sentences. A going can be hard.Logical formLearned from45 sentences. Movings can be hard.Logical formLearned from45 sentences. A patch can be hard.Logical formLearned from45 sentences. Breathing can be hard.Logical formLearned from45 sentences. A breathing can be hard.Logical formLearned from45 sentences. A number can be hard.Logical formLearned from45 sentences. A wooden chair can be hard.Logical formLearned from45 sentences.