TASK DEFINITION: Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
PROBLEM: Context: In the county, the population was spread out with 23.5% under the age of 18, 7.8% from 18 to 24, 28.5% from 25 to 44, 25.9% from 45 to 64, and 14.2% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 93.8 males. For every 100 females age 18 and over, there were 90.5 males.
Question: Which age group is smaller: 25 to 44 or 45 to 64?

SOLUTION: 45 to 64

PROBLEM: Context: Playing in their second game of the season, the Cincinnati Bengals had a lot of things go wrong. Playing Ohio state rivals Cleveland Browns, the defense looked the exact opposite as they did in week one. Browns quarterback Derek Anderson started and threw for 328 yards and five touchdowns. It was only the third time in NFL history that two quarterbacks had thrown at least five touchdown passes in the same game. Jamal Lewis had 215 yards rushing with one touchdown and the Browns had two receivers with over 100 yards, Braylon Edwards and Kellen Winslow. The Bengals offense tried their best to keep the team in the game, however, as Carson Palmer threw for 6 TD's and Chad Johnson caught for 209 yards. The game started out slowly in the first quarter but the second quarter saw a combined 35 points scored. It was close in the end, when the Bengals started a drive with under one minute left. They managed to get the ball to the 50-yard line when Carson Palmer was intercepted by Leigh Bodden on an intended pass for Chad Johnson. This game ended up being the eighth highest scoring game in NFL history, but not the highest scoring game between these two teams. In 2004, the Bengals beat the Browns 58-48 for the second-most combined points. The Redskins (72) and Giants (41) combined for 113 points in 1966 for the most. Q1 - CIN - 10:40 - 13-yard TD pass from Carson Palmer to Rudi Johnson (Shayne Graham kick) (CIN 7-0) Q1 - CLE - 5:02 - Phil Dawson 39-yard FG (CIN 7-3) Q1 - CLE - 0:09 - Phil Dawson 39-yard FG (CIN 7-6) Q2 - CLE - 11:02 - 17-yard TD pass from Derek Anderson to Joe Jurevicius (Dawson kick) (CLE 13-7) Q2 - CIN - 7:40 - 23-yard TD pass from Carson Palmer to T. J. Houshmandzadeh (Graham kick) (CIN 14-13) Q2 - CLE - 6:37 - 9-yard TD pass from Derek Anderson to Joe Jurevicius (Dawson kick) (CLE 20-14) Q2 - CIN - 3:12 - 22-yard TD pass from Carson Palmer to Chad Johnson (Graham kick) (CIN 21-20) Q2 - CLE - 1:11 - 25-yard TD pass from Derek Anderson to Kellen Winslow (Dawson kick) (CLE 27-21) Q3 - CIN - 12:13 - Shayne Graham 20-yard FG (CLE 27-24) Q3 - CLE - 8:24 - 34-yard TD pass from Derek Anderson to Braylon Edwards (Dawson kick) (CLE 34-24) Q3 - CIN - 6:18 - 14-yard TD pass from Carson Palmer to Chad Johnson (Graham kick) (CLE 34-31) Q3 - CLE - 6:04 - Jamal Lewis 66-yard TD run (Dawson kick) (CLE 41-31) Q3 - CIN - 0:53 - 5-yard TD pass from Carson Palmer to T. J. Houshmandzadeh (Graham kick) (CLE 41-38) Q4 - CLE - 10:07 - 37-yard TD pass from Derek Anderson to Braylon Edwards (Dawson kick) (CLE 48-38) Q4 - CLE - 5:47 - Phil Dawson 18-yard FG (CLE 51-38) Q4 - CIN - 3:45 - 7-yard TD pass from Carson Palmer to Glenn Holt (Graham kick) (CLE 51-45)
Question: Which player completed the eighth longest TD pass of the game?

SOLUTION: palmer

PROBLEM: Context: Warming homes and other buildings is an obvious way that thermal energy can be used. Two common types of home heating systems are hot-water and warm-air heating systems. Both types are described below. You can watch an animation showing how a solar heating system works at this URL: A hot-water heating system uses thermal energy to heat water and then pumps the hot water throughout the building in a system of pipes and radiators. You can see a diagram of this type of heating system in Figure 18.12. Typically, the water is heated in a boiler that burns natural gas or heating oil. There is usually a radiator in each room that gets warm when the hot water flows through it. The radiator transfers thermal energy to the air around it by conduction and radiation. The warm air then circulates throughout the room in convection currents. The hot water cools as it flows through the system and transfers its thermal energy. When it finally returns to the boiler, it is heated again and the cycle repeats. A warm-air heating system uses thermal energy to heat air. It then forces the warm air through a system of ducts. You can see a diagram of this type of heating system in Figure 18.13. Typically, the air is heated in a furnace that burns natural gas or heating oil. When the air is warm, a fan blows it through the ducts and out through vents that are located in each room. Warm air blowing out of a vent moves across the room, pushing cold air out of the way. The cold air enters an intake vent on the opposite side of the room and returns to the furnace with the help of another fan. In the furnace, the cold air is heated, and the cycle repeats. Its easy to see how thermal energy can be used to keep things warm. But did you know that thermal energy can also be used to keep things cool? Cooling systems such as air conditioners and refrigerators transfer thermal energy in order to keep homes and cars cool or to keep food cold. In a refrigerator, for example, thermal energy is transferred from the cool air inside the refrigerator to the warmer air in the kitchen. You read in this chapters "Transfer of Thermal Energy" lesson that thermal energy always moves from a warmer area to a cooler area, so how can it move from the cooler refrigerator to the warmer room? The answer is work. The refrigerator does work to transfer thermal energy in this way. Doing this work takes energy, which is usually provided by electricity. Figure 18.14 explains how a refrigerator does its work. For an animated demonstration of how a refrigerator works, go to this URL: The key to how a refrigerator or other cooling system works is the refrigerant. A refrigerant is a substance, such as FreonTM, that has a low boiling point and changes between liquid and gaseous states as it passes through the cooling system. As a liquid, the refrigerant absorbs thermal energy from the cool air inside the refrigerator and changes to a gas. As a gas, it releases thermal energy to the warm air outside the refrigerator and changes back to a liquid. A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the energy to do work. Two basic types of combustion engines are external and internal combustion engines. An external combustion engine burns fuel externally, or outside the engine. The burning fuel releases thermal energy that is used to turn water to steam. The pressure of the steam is then used to move a piston back and forth in a cylinder. The kinetic energy of the moving piston can be used to turn a turbine or other device. Figure 18.15 explains in greater detail how this type of engine works. You can see an animated version of an external combustion engine at this URL: [Link] . An internal combustion engine (see Figure 18.16) burns fuel internally, or inside the engine. This type of engine is found in most cars and other motor vehicles. It works in these steps, which keep repeating: 1. A mixture of fuel and air is pulled into a cylinder through a
Question: complex machine that produces thermal energy outside the machine and uses the thermal energy to do

SOLUTION:
external combustion engine