Is a square a rectangle?

We have had a solution from someone who unfortunately didn't give his or her name, but it says that there are $14$ different rectangles:

Image 1	Image 2	Image 3	Image 4	Image 5
Image 6	Image 7	Image 8	Image 9	Image 10
Image 11	Image 12	Image 13	Image 14

Rectangles 1 and 4 are the same as each other.

Rectangles 5, 8, 10 and 12 are the same as each other.

Rectangles 6 and 11 (which are squares) are the same as each other.

Rectangles 3 and 13 are also squares but they are not the same as each other. They are similar to 6 and 11.

Rectangles 2, 7, 9 and 14 are different to each other and not similar to any other rectangle.