Sentence 1: Sara's mom asked her to help out at a school carnival. 
 Sentence 3: There, Sara's job was to run the cake walk 
 Sentence 4:  When she was done, she was rewarded with some tickets 
 Sentence 5:  Using her tickets, she was able to win prize 
 Given Sentence 2: He was spending some time by himself after a long week at work.