This is the 3044th most frequent Korean word.
허난성
"H허난성" refers to "Henan Province," a region in China.
In this sentence, 허난성 is used as a proper noun referring to a geographical province in China.
허난성은 중국의 중요한 지방 중 하나입니다.
Henan Province is one of the important regions in China.
Here, 허난성 refers to the province again in a context emphasizing its demographic and historical importance.
허난성은 인구가 많고 역사적으로 중요한 지역입니다.
Henan Province has a large population and is historically significant.
In this example, 허난성 describes the location where the speaker traveled and experienced scenic beauty.