Sentence 1: Todd was on his morning jog before work. 
 Sentence 3: Taking a side street, he crossed through a park he had never been to 
 Sentence 4:  Jogging through the park and taking it in, he tripped on old pavement 
 Sentence 5:  Falling to his hands and knees, he scratched up his legs badly 
 Given Sentence 2: He was making good time but wanted to run a bit longer.