A city can be safe.Logical formLearned from500 sentences. A city can be dangerous.Logical formLearned from496 sentences. A city may sleep.Logical formLearned from496 sentences. An ability may pertain-to a city.Logical formLearned from493 sentences. Cities can be with populations.Logical formLearned from488 sentences. A city can be adopted.Logical formLearned from487 sentences. (City officials) may pertain-to a world-city.Logical formLearned from486 sentences. A city may pertain-to a name.Logical formLearned from486 sentences. Cities can be incorporated.Logical formLearned from485 sentences. Suburbs may pertain-to a city.Logical formLearned from485 sentences. A (police department) may pertain-to a city.Logical formLearned from484 sentences. A city can be democratic.Logical formLearned from484 sentences. Cities can be dangerous.Logical formLearned from483 sentences. A person may leave a city.Logical formLearned from483 sentences. A (police force) may pertain-to a city.Logical formLearned from483 sentences.