Notebooks can be rugged.Logical formLearned from62 sentences. A plateau can be rugged.Logical formLearned from62 sentences. A path can be rugged.Logical formLearned from60 sentences. A jungle can be rugged.Logical formLearned from60 sentences. A corner can be rugged.Logical formLearned from59 sentences. A way can be rugged.Logical formLearned from57 sentences. (Mountain passes) can be rugged.Logical formLearned from57 sentences. Shorts can be rugged.Logical formLearned from56 sentences. Expeditions can be rugged.Logical formLearned from56 sentences. A durability can be rugged.Logical formLearned from56 sentences. A body can be rugged.Logical formLearned from56 sentences. A shoreline can be rugged.Logical formLearned from55 sentences. A play can be rugged.Logical formLearned from55 sentences. A (mountain region) can be rugged.Logical formLearned from54 sentences. (Mountain peaks) can be rugged.Logical formLearned from53 sentences.