For the given input, what is the first letter of the fifth word?
Today is a sunny day.
The first letter of the fifth word in the given input is "d".
Complete the following task based on the instruction and optional input provided.### Instruction:
For the given input, what is the first letter of the fifth word?

### Input:
Today is a sunny day.

### Output:
The first letter of the fifth word in the given input is "d".