Categorize the given input into one of the four shapes: square, circle, triangle, or rectangle.
A figure with four equal sides and four right angles.
The described figure is a square.
Complete the following task based on the instruction and optional input provided.### Instruction:
Categorize the given input into one of the four shapes: square, circle, triangle, or rectangle.

### Input:
A figure with four equal sides and four right angles.

### Output:
The described figure is a square.