Formulate a question answered by the following passage.
John F. Kennedy was the 35th President of the United States.
Who was the 35th President of the United States?
Complete the following task based on the instruction and optional input provided.### Instruction:
Formulate a question answered by the following passage.

### Input:
John F. Kennedy was the 35th President of the United States.

### Output:
Who was the 35th President of the United States?