A silhouette can be rugged.Logical formLearned from4 sentences. A (desert country) can be rugged.Logical formLearned from4 sentences. A tour can be rugged.Logical formLearned from4 sentences. A country can be rugged.Logical formLearned from4 sentences. A cover can be rugged.Logical formLearned from4 sentences. A confrontation can be rugged.Logical formLearned from4 sentences. A hat can be rugged.Logical formLearned from4 sentences. Shapes can be rugged.Logical formLearned from4 sentences. A slide can be rugged.Logical formLearned from4 sentences. Environs can be rugged.Logical formLearned from4 sentences. A person may like a rugged individualism.Logical formLearned from4 sentences. An unit can be rugged.Logical formLearned from4 sentences. An (anchoring system) can be rugged.Logical formLearned from4 sentences. A detector can be rugged.Logical formLearned from4 sentences. Mobile phones can be rugged.Logical formLearned from4 sentences.