I have a new situation: Keith is a doctor in a local hospital. Today, he is seeing three patients, patient A, patient B, and patient C. Patient A has been suffering from hepatitis B all his life; patient B is recovering from hepatitis B on his own; and patient C doesn't have hepatitis B. Keith would now compare the symptoms of these patients. But I can use this background: Hepatitis B is a disease of the liver. It is caused by a virus called hepatitis B, which can be passed through sexual activity. Hepatitis B causes vomiting. It also causes yellowing of the skin and eyes. The disease goes away on its own in some people. Other people are sick for the rest of their lives. In these people, the virus usually damages the liver. It may also lead to liver cancer. Medicines can help prevent liver damage in these people. There is also a vaccine to protect against hepatitis B. What is an answer for this question: Which patient would more likely not see yellowing of the skin, patient A or patient C?
----
Answer: patient C

I have a new situation: Rob knows a brilliant scientist who has made a time machine. One day, the scientist let Rob travel time with his machine. Rob noticed that the machine had four gears, gear A, gear B, gear C, and gear D. Rob started with Gear A, which represented the present time. Then he pushed the gear to gear B, which was 600 million years from now. Then he further pushed the gear to gear C, which brought him to 800 million years from now. Finally, he pushed the gear to gear D, which brought him to 1.1 billion years from now. Though he traveled time, Rob was always on Earth all the time. But I can use this background: In the long term, the greatest changes in the Solar System will come from changes in the Sun itself as it ages. As the Sun burns through its supply of hydrogen fuel, it gets hotter and burns the remaining fuel even faster. As a result, the Sun is growing brighter at a rate of ten percent every 1.1 billion years. In about 600 million years, the Sun brightness will have disrupted the Carbon Cycle to the point that trees and forests (C3 photosynthetic plant life) will no longer be able to survive and in around 800 million years, the Sun will have killed all complex life on the Earth's surface and in the oceans. In 1.1 billion years' time, the Sun's increased radiation output will cause its circumstellar habitable zone to move outwards, making the Earth's surface too hot for liquid water to exist there naturally. At this point, all life will be reduced to single celled organisms. Evaporation of water, a potent greenhouse gas, from the oceans' surface could accelerate temperature increase, potentially ending all life on Earth even sooner. During this time, it is possible that as Mars's surface temperature gradually rises, carbon dioxide and water currently frozen under the surface regolith will release into the atmosphere, creating a greenhouse effect that will heat the planet until it achieves conditions parallel to Earth today, providing a potential future abode for life. By 3.5 billion years from now, Earth's surface conditions will be similar to those of Venus today. What is an answer for this question: When Rob would see more liquid water on Earth's surface, gear C or gear D?
----
Answer: gear C

I have a new situation: Weather patterns in two cities are rather different. Much to the dismay of many residents of the town, the weather in Smallville is often windy and cloudy. Citizens of Klangton are much happier since they rarely experience heavy winds and generally only have a couple clouds in the sky. Their weather is almost always sunny with almost clear skies. But I can use this background: Electrons can be removed from some objects using friction, simply by rubbing one substance against another substance. There are many examples of objects becoming charged by friction, including a rubber comb through hair, and a balloon on a sweater. In both these instances, the electrons move from the second object to the first, causing the first object to become negatively charged and the second one positively charged. Friction between the tires on a moving car and the road cause the tires to become charged, and wind causes friction between clouds and air which causes clouds to become charged and can result in tremendous bolts of lightning. What is an answer for this question: Does Klangton get more or less thunderstorms than Smallville?
----
Answer:
less