Sentence 1: Kirby tried to cut down a tree with a hand ax. 
 Sentence 3: When his hand saw broke, he tried a chainsaw 
 Sentence 4:  The chainsaw cut the tree down, but it also cut Kirby's leg 
 Sentence 5:  Kirby decided to get an artificial tree next Christmas 
 Given Sentence 2: When that didn't work, he decided to try a hand saw.