A principal can be tough.Logical formLearned from7 sentences. A defeat can be tough.Logical formLearned from7 sentences. (Security conditions) can be tough.Logical formLearned from7 sentences. An economic crisis can be tough.Logical formLearned from7 sentences. A diplomatic mission can be tough.Logical formLearned from7 sentences. A (movie star) may portray tough guys with a soft spot.Logical formLearned from7 sentences. Variety can be tough.Logical formLearned from7 sentences. Rockers can be tough.Logical formLearned from7 sentences. A male may stand tough against demands.Logical formLearned from7 sentences. (Free-market reforms) can be tough.Logical formLearned from7 sentences. A (gun control law) can be tough.Logical formLearned from7 sentences. (Home ownership) can be tough.Logical formLearned from7 sentences. A country may remain tough.Logical formLearned from7 sentences. Governments can be tough.Logical formLearned from7 sentences. A government may get tough with peacekeepers.Logical formLearned from7 sentences.