は市の中央に

is in the center of the city

→ は
phrase Rare #38,873
is in the center of the city This is a sentence fragment: は marks the topic, and 市の中央に means “in the center of the city.” It is usually followed by ある or 位置している.
JA: 病院は市の中央にあります。
EN: The hospital is in the center of the city.

図書館は市の中央にある

The library is in the center of the city.

は市の中央にある

The station is in the center of the city.

その公園は市の中央に位置している

The park is located in the center of the city.