original: Zhengzhou is the province's capital and most populous city.
simplifications: Zhengzhou is the province's capital and has the most people. Zhengzhou is he province's capital and largest city. Zhengzhou is the province's capital. It has the highest population. Zhengzhou is the province's capital. It is also its most populated city. Zhengzhou is the province's capital. It is its most populous city. Zhengzhou is the capital of the province and has the highest population. Zhengzhou is the region's capital. It is also the most populated city in the region. Zhengzhou is the province's capital and most populated. Zhengzhou is the capital of the province and the most populous city. Zhengzhou is the region's capital and the most populous city.