Sentence 1: At some point, my parents thought I was old enough to mow the lawn. 
 Sentence 3: The first time, I accidentally ran over a frog 
 Sentence 4:  I felt terrible 
 Sentence 5:  I stood in the yard crying 
 Option 1: It was a gas-fueled push mower. 
 Option 2: It was a gas-fueled push mower that would not turn on when I tried using it.