Task: Coherence Classification
Input (English): Sentence 1: Nancy's life began to bring more stress than she was used to. 
 Sentence 3: She couldn't focus without sleep, so she visited the doctor 
 Sentence 4:  Her doctor prescribed her with insomnia medication 
 Sentence 5:  The medication worked, and Nancy was happy to sleep well again 
 Given Sentence 2: Nancy was so stressed that she began to have trouble sleeping.
Output (English): Yes