A person can be rugged.Logical formLearned from71 sentences. A case can be rugged.Logical formLearned from71 sentences. A (mountain area) can be rugged.Logical formLearned from70 sentences. A trail can be rugged.Logical formLearned from69 sentences. Roads can be rugged.Logical formLearned from67 sentences. Environments can be rugged.Logical formLearned from67 sentences. A defender can be rugged.Logical formLearned from67 sentences. A male can be rugged.Logical formLearned from66 sentences. Persons can be rugged.Logical formLearned from66 sentences. An image can be rugged.Logical formLearned from65 sentences. A district can be rugged.Logical formLearned from64 sentences. A northwest can be rugged.Logical formLearned from64 sentences. A use can be rugged.Logical formLearned from63 sentences. Rocks can be rugged.Logical formLearned from63 sentences. A section can be rugged.Logical formLearned from63 sentences.