Here's how we can break it down:
* "Who" is used for people or things with a personality or identity.
* "Horses" are animals.
So, a horse isn't a person, and it doesn't have the same kind of identity as a human.
Instead of asking "Whom is a horse?", you might ask:
* What is a horse? (This would get you a description of a horse)
* What are horses like? (This would lead to a discussion about horse behavior)
* Who owns this horse? (This would ask about the horse's owner)
Let me know if you have another question! 😊