Escarpments can be rugged.Logical formLearned from14 sentences. Models can be rugged.Logical formLearned from14 sentences. A backdrop can be rugged.Logical formLearned from14 sentences. A top may pertain-to a rugged mountain.Logical formLearned from14 sentences. A (dirt road) can be rugged.Logical formLearned from14 sentences. A ravine can be rugged.Logical formLearned from14 sentences. A climate can be rugged.Logical formLearned from14 sentences. Players can be rugged.Logical formLearned from14 sentences. Games can be rugged.Logical formLearned from14 sentences. A fellow can be rugged.Logical formLearned from13 sentences. A physique can be rugged.Logical formLearned from13 sentences. Rugged mountains can be high.Logical formLearned from13 sentences. (Mountain regions) can be rugged.Logical formLearned from13 sentences. An aspect can be rugged.Logical formLearned from13 sentences. A platform can be rugged.Logical formLearned from13 sentences.