Sentence 1: Tina loved to walk her two dogs. 
 Sentence 3: One day they went to a new street and saw a very big and scary dog 
 Sentence 4:  The dog came toward them, and Tina immediately turned to run away 
 Sentence 5:  Tina decided to continue walking on the street she knew well 
 Given Sentence 2: She noticed she was gaining weight.