input: Please answer the following: Rob got a compass as a present for his birthday. The magnet in the compass made him very interested in how magnets work. To understand magnets better he categorized objects in two groups, group A and group B. In group A all objects were magnetic, but in group B none of the objects was magnetic. Which group's atoms' poles would direct to all directions, group A or group B?
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output: group B

input: Please answer the following: Robert studied two groups of patients. Group O had mild allergy symptoms, while group R displayed severe allergy symptoms. Which group may require an injection of the hormone epinephrine?
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output: group R

input: Please answer the following: Except for their color, there are two identical inflatable chairs in a grade school classroom that the children can use during free time. Today, Patrick and Mark, who weighs much more than Patrick, are allowed to use the chairs. Patrick chooses to sit on the red chair, and Mark sits on the green chair. The boys have fun reading books while they sit on their comfortable inflatable chairs. Which chair has a higher air pressure?
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output: green chair

input: Please answer the following: 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. Which person studied less about locusts?
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output:
John