Sort the descriptions into the appropriate bins, which illustrate the types of biaxial movement.

I found the exercise on the internet. Attached is the descriptions and the bins.

Biaxial movement in a condylar joint:
-Example of knuckle joints
-Condylar type of joint

Biaxial movement in a saddle joint:
-Example of carpometacaral joint of the thumb
-Saddle type of joint
-Concave and convex surfaces displayed

Biaxial movement in both types of joints:
-Flexion permitted
-Extension permitted

Can you put the picture?

The category is the thing that is most simmilar throughout a period