Sentence 1: The figure skater was preparing for a big competition. 
 Sentence 3: The skater went to physical therapy to strengthen it 
 Sentence 4:  She slowly felt better 
 Sentence 5:  The skater skated without pain and won the competition 
 Option 1: She made sure to stretch her back before practice to avoid injuring it. 
 Option 2: She strained her back in practice.