Task: Question Answering
Input (English): passage: The lack of nutrients in the diet, or the lack of a balanced diet, can contribute to the discoloration of the area under the eyes. It is believed that iron deficiency can cause dark circles as well. Iron deficiency is the most common type of anemia and this condition is a sign that not enough oxygen is getting to the body tissues.
 question: can an iron deficiency cause dark circles under the eyes?
Output (English): Yes