write four only, I am too tired

I saw two cats fought after school today. They was devilish and fought for a long time. The first cat is smaller but it's not afraid. The big cat bit it, it bit it back immediately. They didn't think about stop the fighting because no one wants to be a loser. The animals are so tenacious.

My grandpa own many doggies, they always fight, and also so tenacious. I don't know why, nothing they need to protect.

I am too sleepy now, and the things I write are no sense.