A country may face some challenges.Logical formLearned from298 sentences. Challenges can be enormous.Logical formLearned from296 sentences. A nature may pertain-to a challenge.Logical formLearned from295 sentences. A challenge can be to a male.Logical formLearned from295 sentences. A challenge can be in a country.Logical formLearned from292 sentences. A challenge can be daunting.Logical formLearned from290 sentences. An end may pertain-to a challenge.Logical formLearned from290 sentences. A challenge can be to persons.Logical formLearned from284 sentences. Challenges may arise.Logical formLearned from282 sentences. A challenge may pertain-to a life.Logical formLearned from281 sentences. A country can be a challenge.Logical formLearned from279 sentences. A female may face a challenge.Logical formLearned from278 sentences. A challenge can be to authority.Logical formLearned from276 sentences. A challenge may pertain-to a bank.Logical formLearned from273 sentences. Challenges can be in a country.Logical formLearned from272 sentences.