Sentence 1: Ollie found a red balloon. 
 Sentence 3: While walking he saw a shiny quarter on the street 
 Sentence 4:  He bent down to pick it up, and let go of the balloon 
 Sentence 5:  Ollie watched with sadness while the balloon floated upward 
 Option 1: He tried to take the balloon for a walk but it popped the instant he touched it. 
 Option 2: He took the balloon for a walk.