Sentence 1: Brownie was a happy dog, a pekingese who looked like a mop. 
 Sentence 3: Brownie walked into a wall, hurting his nose 
 Sentence 4:  He was never able to smell food again 
 Sentence 5:  Brownie still ate healthy every day, even with a broken nose 
 Option 1: One day, Brownie started going deaf. 
 Option 2: One day, Brownie started going blind.