Sentence 1: Chet was trying to build a shelf in his home. 
 Sentence 3: Chet missed the nail and hit his thumb 
 Sentence 4:  Chet screamed in pain 
 Sentence 5:  Chet's wife brought him a bag of ice to reduce the swelling 
 Option 1: He picked up a chainsaw and tried to swing it into the wood. 
 Option 2: He picked up a hammer and tried to swing it into the nail.