input question: John was studying about the history of Sahara desert. He was amazed to find that ten thousand years ago there were plenty of rainfall in that region. He labeled that era as era A. Then he found that rainfall deceased in the region about eight thousand years ago. He labeled that era as era B. He was wondering how that change in rainfall might have helped emerge the Egyptian civilization. In which era less rocks would have chemical reactions, era A or era B????
output answer: era B

input question: Two neighboring countries had health epidemics. While Ghana had a measles problem, Niger had a very serious HIV problem that seemed to get out of control. Which country had more people transmitting HIV by contact with infected breast milk????
output answer: Niger

input question: Mary had two children. Her firs born was named Bill and was normal, and her second child was named Sam and had Down syndrome. Which child didn't have an autosomal trisomy ????
output answer: Bill

input question: Keith is a doctor at the city hospital. Today, he is seeing six patients, patient A, patient B, patient C, patient D, patient E, and patient F. Patient A is a smoker, but patient B is not a smoker. Patient C uses sunscreen, but patient D does not use any sunscreen. Patient E tans with tanning lamps, but patient F tans in the sun. Which patient would have higher risk or lung cancer, patient A or patient B????
output answer:
patient A