Sentence 1: My nephew's son Timmy is 22 months old. 
 Sentence 3: Timmy and the dog got along fine when he was one 
 Sentence 4:  Now Timmy is 2 and teases the dog by touching him 
 Sentence 5:  The dog is not pleased with Timmy nowadays 
 Given Sentence 2: My nephew had a pug dog before the child was born.