Task: Question Answering
Input (English): Background Paragraph: A few insects, such as mayflies and some moths, never eat. That’s because their lives are over in just a few hours or days. Once these insects become adults, they lay eggs, and then die. On the other hand, some insects are very healthy eaters. A silkworm eats enough leaves to increase its weight more than 4,000 times in just 56 days, as the silkworm increases in size about 10,000 times since birth. A locust eats its own weight in plants every day. Just imagine eating your own weight in food every day. You probably couldn't. You would most likely get very sick even if you tried. 
Story: John and Mary were studying insects. John liked to study insects that never eat, while  Mary decided to study insects that are very healthy eaters. 
Question: Which person studied more about mayflies?
Output (English): John.