Task: Coherence Classification
Input (English): Sentence 1: My doctor said my zinc levels were low. 
 Sentence 3: I took zinc supplements for three months but they had no effect 
 Sentence 4:  It turns out that I was taking zinc oxide which is not absorbed well 
 Sentence 5:  I switched to zinc citrate which increased my zinc levels quite a bit! 
 Given Sentence 2: He told me to take zinc supplements.
Output (English): Yes