Sentence 1: Tara had a bad knee. 
 Sentence 3: That day, it was raining a lot and her knee was painful 
 Sentence 4:  She put some cream on it, but it didn't help 
 Sentence 5:  Only when the rain stopped did she find some relief 
 Option 1: Tara had surgery to correct her knee. 
 Option 2: It always hurt very much during a storm.