A piece can be rugged.Logical formLearned from23 sentences. A wear can be rugged.Logical formLearned from23 sentences. Surroundings can be rugged.Logical formLearned from23 sentences. Types can be rugged.Logical formLearned from23 sentences. A pilgrimage can be rugged.Logical formLearned from23 sentences. Heights can be rugged.Logical formLearned from22 sentences. A honesty can be rugged.Logical formLearned from22 sentences. A ballistic nylon can be rugged.Logical formLearned from22 sentences. A climb can be rugged.Logical formLearned from22 sentences. Products can be rugged.Logical formLearned from22 sentences. A setting can be rugged.Logical formLearned from22 sentences. An edge can be rugged.Logical formLearned from22 sentences. A (mountain scenery) can be rugged.Logical formLearned from22 sentences. Surfaces can be rugged.Logical formLearned from22 sentences. Rugged mountains may be cloaked in (chestnut trees).Logical formLearned from22 sentences.