Identify the color of a banana.
The color of a banana is typically yellow when it is ripe. However, it can also be green when it is unripe and will turn brown or black when overripe.
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the color of a banana.

### Output:
The color of a banana is typically yellow when it is ripe. However, it can also be green when it is unripe and will turn brown or black when overripe.