Sentence 1: Tom had the same cushions for the last 10 years. 
 Sentence 3: He knitted a new cushion from the yarn 
 Sentence 4:  He then filled the yarn with the cotton 
 Sentence 5:  The new cushions looked and felt much better than the old ones 
 Option 1: He decided to buy cotton and yarn for his new cushions. 
 Option 2: He decided to buy cotton and leather for his new cushions.