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.

Input: Consider Input: Context: Cells were first discovered in the mid-1600s. The cell theory came about some 200 years later. You can see a re- enactment of some of the discoveries that led to the cell theory in this video: MEDIA Click image to the left or use the URL below. URL: British scientist Robert Hooke first discovered cells in 1665. He was one of the earliest scientists to study living things under a microscope. He saw that cork was divided into many tiny compartments, like little rooms. (Do the cells in Figure 3.1 look like little rooms to you too?) Hooke called these little rooms cells. Cork comes from trees, so what Hooke observed was dead plant cells. In the late 1600s, Dutch scientist Anton van Leeuwenhoek made more powerful microscopes. He used them to observe cells of other organisms. For example, he saw human blood cells and bacterial cells. Over the next century, microscopes were improved and more cells were observed. By the early 1800s, scientists had seen cells in many different types of organisms. Every organism that was examined was found to consist of cells. From all these observations, German scientists Theodor Schwann and Matthias Schleiden drew two major conclusions about cells. They concluded that: cells are alive. all living things are made of cells. Around 1850, a German doctor named Rudolf Virchow was observing living cells under a microscope. As he was watching, one of the cells happened to divide. Figure 3.2 shows a cell dividing, like the cell observed by Virchow. This was an aha moment for Virchow. He realized that living cells produce new cells by dividing. This was evidence that cells arise from other cells. The work of Schwann, Schleiden, and Virchow led to the cell theory. This is one of the most important theories in life science. The cell theory can be summed up as follows: All organisms consist of one or more cells. Cells are alive and the site of all life processes. All cells come from pre-existing cells. All cells have certain parts in common. These parts include the cell membrane, cytoplasm, DNA, and ribosomes. The cell membrane is a thin coat of phospholipids that surrounds the cell. Its like the skin of the cell. It forms a physical boundary between the contents of the cell and the environment outside the cell. It also controls what enters and leaves the cell. The cell membrane is sometimes called the plasma membrane. Cytoplasm is the material inside the cell membrane. It includes a watery substance called cytosol. Besides water, cytosol contains enzymes and other substances. Cytoplasm also includes other cell structures suspended in the cytosol. DNA is a nucleic acid found in cells. It contains genetic instructions that cells need to make proteins. Ribosomes are structures in the cytoplasm where proteins are made. They consist of RNA and proteins. These four components are found in all cells. They are found in the cells of organisms as different as bacteria and people. How did all known organisms come to have such similar cells? The answer is evolution. The similarities show that all life on Earth evolved from a common ancestor. Besides the four parts listed above, many cells also have a nucleus. The nucleus of a cell is a structure enclosed by a membrane that contains most of the cells DNA. Cells are classified in two major groups based on whether or not they have a nucleus. The two groups are prokaryotic cells and eukaryotic cells. Prokaryotic cells are cells that lack a nucleus. The DNA in prokaryotic cells is in the cytoplasm, rather than enclosed within a nuclear membrane. All the organisms in the Bacteria and Archaea Domains have prokaryotic cells. No other organisms have this type of cell. Organisms with prokaryotic cells are called prokaryotes. They are all single-celled organisms. They were the first type of organisms to evolve. They are still the most numerous organisms today. You can see a model of a prokaryotic cell in Figure 3.3. The cell in the figure is a bacterium. Notice how it contains a cell membrane, cytoplasm, ribosomes, and several other structures. However, the cell lacks a nucleus. The cells DNA is circular. 
 Question: The smallest unit of living things that can carry out the chemical reactions of life is the

Output: cell


Input: Consider Input: 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?

Output: palmer


Input: Consider Input: Context: Over time, the custom of kissing developed as a way for adults to express their love and affection for one another. The roots of this form of affection can be traced back to primitive times, when mothers fondled their children, much as mothers do today. Much later, in the sixth century, society apparently accepted the custom of kissing between adults as an expression of their affection. Not surprisingly, France first accepted kissing in courtship . There, figure dancing was popular, and each dance was sealed with a kiss. The custom of kissing swept from France through Europe to Russia, where Russian nobility loved to imitate the French. Eventually, the kiss was incorporated into marriage ceremonies, and today lip locks couples into sweet matrimony. The custom of kissing today, as well as in ancient times, serves to pay _ to another. Early Romans kissed each other on the mouth or on the eyes to greet one another in a manner they thought to be dignified. One Roman emperor even ranked a person's importance by the body part he was allowed to kiss. He allowed important nobles to kiss his lips, less important ones to kiss his hands, and the least important ones to kiss his feet. In Russia, the highest sign of recognition from the Crown meant a kiss from the Tsar himself. Today, natives of many African tribes pay homage to their Chief by kissing the ground over which he has walked. 
 Question: What's mainly talked about in the passage?


Output: the custom of kissing.