(Dirt roads) can be rugged.Logical formLearned from15 sentences. A spread can be rugged.Logical formLearned from15 sentences. A female can be rugged.Logical formLearned from15 sentences. Power can be rugged.Logical formLearned from15 sentences. Edges can be rugged.Logical formLearned from15 sentences. A trail can be rugged.Logical formLearned from15 sentences. Waves can be rugged.Logical formLearned from15 sentences. An east coast can be rugged.Logical formLearned from15 sentences. A homeland can be rugged.Logical formLearned from15 sentences. An aircraft can be rugged.Logical formLearned from14 sentences. A model can be rugged.Logical formLearned from14 sentences. Sides can be rugged.Logical formLearned from14 sentences. Gorges can be rugged.Logical formLearned from14 sentences. Relief can be rugged.Logical formLearned from14 sentences. A rancher can be rugged.Logical formLearned from14 sentences.