A topography can be rugged.Logical formLearned from15 sentences. An existence can be rugged.Logical formLearned from15 sentences. A weapon can be rugged.Logical formLearned from15 sentences. Faces can be rugged.Logical formLearned from15 sentences. An escarpment can be rugged.Logical formLearned from15 sentences. Shoes can be rugged.Logical formLearned from15 sentences. A person may look rugged.Logical formLearned from15 sentences. Tires can be rugged.Logical formLearned from15 sentences. A road can be rugged.Logical formLearned from15 sentences. A test can be rugged.Logical formLearned from15 sentences. A nylon can be rugged.Logical formLearned from15 sentences. A form can be rugged.Logical formLearned from15 sentences. A (west coast) can be rugged.Logical formLearned from15 sentences. A patch can be rugged.Logical formLearned from15 sentences. A winger can be rugged.Logical formLearned from15 sentences.