Sentence 1: I threw the whole wheat bread into the toaster. 
 Sentence 3: I had difficulty taking out the bread since it was stuck 
 Sentence 4:  When I took one loaf out, part of it was left in the toaster 
 Sentence 5:  However, I ate the part that I took out 
 Given Sentence 2: He became so bored with his work that he yawned.