A start can be rugged.Logical formLearned from35 sentences. Outdoors can be rugged.Logical formLearned from35 sentences. A forest can be rugged.Logical formLearned from35 sentences. Shores can be rugged.Logical formLearned from34 sentences. An outback can be rugged.Logical formLearned from34 sentences. A man can be rugged.Logical formLearned from34 sentences. A hero can be rugged.Logical formLearned from34 sentences. A mountain can be rugged.Logical formLearned from34 sentences. A (frontier region) can be rugged.Logical formLearned from34 sentences. A peak can be rugged.Logical formLearned from33 sentences. A landscape can be rugged.Logical formLearned from33 sentences. A backcountry can be rugged.Logical formLearned from33 sentences. (Border areas) can be rugged.Logical formLearned from33 sentences. A match can be rugged.Logical formLearned from33 sentences. A side can be rugged.Logical formLearned from33 sentences.