Label the parts of a horse using the provided vocabulary words.

Okay, I see the zoomed-in view of the bottom label box. The line from this box points to the horse's hoof, which is the hard, dark-colored part at the very end of its leg that touches the ground. This matches the word "hoof" from our list. I will assign "hoof" to this box. Now I have identified all the parts and can provide the final solution.

Based on my analysis of the image, here is the correct labeling for each part of the horse:

- Top left box: Points to the tail → tail
- Box above the back: Points to the mane → mane
- Top right box: Points to the ear → ear
- Second from top on right: Points to the eye → eye
- Third from top on right: Points to the nostril → nostril
- Fourth from top on right: Points to the mouth → mouth
- Middle box: Points to the leg → leg
- Bottom box: Points to the hoof → hoof