Sentence 1: Johnny sat at his desk staring at his book desolate. 
 Sentence 3: He begins his story with a boy much like himself 
 Sentence 4:  Minding his punctuation he makes quick work of it 
 Sentence 5:  Now tired from the work he rests knowing he has finished his homework 
 Given Sentence 2: He wracks his brain for any idea but nothing comes.