A tool can be rugged.Logical formLearned from7 sentences. A (landing gear) can be rugged.Logical formLearned from7 sentences. A device can be rugged.Logical formLearned from7 sentences. A breath can be rugged.Logical formLearned from7 sentences. Parts can be rugged.Logical formLearned from7 sentences. A comfort can be rugged.Logical formLearned from7 sentences. A stranger can be rugged.Logical formLearned from7 sentences. Shoulders can be rugged.Logical formLearned from7 sentences. A background can be rugged.Logical formLearned from7 sentences. Insulators can be rugged.Logical formLearned from7 sentences. Lookings can be rugged.Logical formLearned from7 sentences. (Cliff faces) can be rugged.Logical formLearned from7 sentences. A hug can be rugged.Logical formLearned from7 sentences. A dependability can be rugged.Logical formLearned from7 sentences. Men can be rugged.Logical formLearned from7 sentences.