This task is about identifying the subject of a given sentence. The subject of a sentence is the person, place, or thing that is performing the action of the sentence. The subject represents what or whom the sentence is about. Each sentence in this task is guaranteed to contain a single subject. The input is a sentence and the output is the identified subject of that sentence.

Example Input: Wang Han is from China.
Example Output: Wang Han

Example Input: Hiroshi Aoyama won the Spanish Grand Prix.
Example Output: Spanish Grand Prix

Example Input: Switzerland's legislature is formed in the Federal Assembly.
Example Output:
Switzerland