input question: Two brothers liked natural sciences. Ben decided to study Ecology, while his brother Dan decided to study Geography. They studied a lot and became very good at these subjects. Given the paragraph above, please answer correctly the following question: Which brother studied fewer ecosystems????
output answer: Dan

input question: Rob is testing the properties of gas. To that end, he experimented with a cylinder of gas in three stages, stage A, stage B, and stage C. In stage A he kept the gas in room temperature. In stage B he heated the gas up. And in stage C he cooled the gas down. Given the paragraph above, please answer correctly the following question: Which stage would see decreased pressure, stage B or stage C????
output answer: stage C

input question: Two students from the same class, studies different types of animals. Bill studied predators, while John studied grazers. Given the paragraph above, please answer correctly the following question: Which student found out that predators can be keystone species????
output answer: Bill

input question: Two college buddies have known each other for 20 years. Tim was HIV positive while John was not and he didn't have a problem with it. Given the paragraph above, please answer correctly the following question: Which friend has immune deficiency????
output answer:
Tim