A defenseman can be rugged.Logical formLearned from87 sentences. A fisherman can be rugged.Logical formLearned from86 sentences. Landscapes can be rugged.Logical formLearned from84 sentences. A stretch can be rugged.Logical formLearned from84 sentences. A desert can be rugged.Logical formLearned from82 sentences. An appearance can be rugged.Logical formLearned from81 sentences. A valley can be rugged.Logical formLearned from81 sentences. (Mountain ranges) can be rugged.Logical formLearned from79 sentences. An individual can be rugged.Logical formLearned from75 sentences. Individuals can be rugged.Logical formLearned from75 sentences. A life can be rugged.Logical formLearned from75 sentences. Foothills can be rugged.Logical formLearned from74 sentences. An environment can be rugged.Logical formLearned from74 sentences. Looks can be rugged.Logical formLearned from73 sentences. A toughness can be rugged.Logical formLearned from72 sentences.