instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
The TMEM18 protein's amino acid sequence is well conserved, which suggests that it has retained its function since the divergence of human and plants.
answer:
In what living being can TMEM18 be found?


question:
Oil is a liquid fossil fuel that is extremely useful because it can be transported easily and can be used in cars and other vehicles. Oil is currently the single largest source of energy in the world. Oil from the ground is called crude oil, which is a mixture of many different hydrocarbons. Crude oil is a thick dark brown or black liquid hydrocarbon. Oil also forms from buried dead organisms, but these are tiny organisms that live on the sea surface and then sink to the seafloor when they die. The dead organisms are kept away from oxygen by layers of other dead creatures and sediments. As the layers pile up, heat and pressure increase. Over millions of years, the dead organisms turn into liquid oil. In order to be collected, the oil must be located between a porous rock layer and an impermeable layer (Figure 1.1). Trapped above the porous rock layer and beneath the impermeable layer, the oil will remain between these layers until it is extracted from the rock. Oil (red) is found in the porous rock layer (yellow) and trapped by the impermeable layer (brown). The folded structure has allowed the oil to pool so a well can be drilled into the reservoir. To separate the different types of hydrocarbons in crude oil for different uses, the crude oil must be refined in refineries like the one shown in Figure 1.2. Refining is possible because each hydrocarbon in crude oil boils at a different temperature. When the oil is boiled in the refinery, separate equipment collects the different compounds. Most of the compounds that come out of the refining process are fuels, such as gasoline, diesel, and heating oil. Because these fuels are rich sources of energy and can be easily transported, oil provides about 90% of the energy used for transportation around the world. The rest of the compounds from crude oil are used for waxes, plastics, fertilizers, and other products. Gasoline is in a convenient form for use in cars and other transportation vehicles. In a car engine, the burned gasoline mostly turns into carbon dioxide and water vapor. The fuel releases most of its energy as heat, which causes the gases to expand. This creates enough force to move the pistons inside the engine and to power the car. Refineries like this one separate crude oil into many useful fuels and other chemi- cals. Click image to the left or use the URL below. URL: The United States does produce oil, but the amount produced is only about one-quarter as much as the nation uses. The United States has only about 1.5% of the worlds proven oil reserves, so most of the oil used by Americans must be imported from other nations. The main oil-producing regions in the United States are the Gulf of Mexico, Texas, Alaska, and California (Figure As in every type of mining, mining for oil has environmental consequences. Oil rigs are unsightly (Figure 1.4), and spills are too common (Figure 1.5). Click image to the left or use the URL below. URL: Offshore well locations in the Gulf of Mex- ico. Note that some wells are located in very deep water. Drill rigs at the San Ardo Oil Field in Monterey, California.
answer:
crude oil is a mixture of many different


question:
Sailing Through History A group of 1,309 passengers boarded the MSBalmoralon Sunday, in Southampton, England, on a voyage to retrace the path of theTitanic. TheTitanicwas the biggest ship in the world when it sailed on its ill-fated maiden voyage in 1912. Of the 2,227 passengers and crew aboard, more than 1,500 died. The ship, which was headed to New York City, carried the rich and famous on its first voyage. It also carried immigrants, who were seeking a better life in America. Relatives of people who sailed on theTitanic, historians, authors and people fascinated by the story of the unsinkable ship, are on theBalmoral. They want to remember the doomed ship and those who died on her first and last voyage. The historic liner had set sail on April 10, 1912, from Southampton. Late at night on April 14, she hit an iceberg. In the early morning hours of April 15, theTitanicsank. TheBalmoralis followingTitanic's original route from Southampton. First, the modern-day cruise liner docked in the port of Cherbourg, France, where theTitanichad picked up more passengers. On Monday afternoon, theBalmoralstops in Cobh, Ireland, theTitanic's last port of call before sailing to New York. Balmoralwill then cruise the North Atlantic Ocean to the location whereTitanichit an iceberg that ripped the ship's hull . On Sunday, April 15, at 2:20 a.m.--the time theTitanicwent down--passengers and crew will hold a memorial service. The next two days will be spent in Halifax, Canada, where many victims of the sinking are buried. Then, theBalmoralwill reach its final destination in New York City, whereTitanicwas supposed to dock--but never did. Until today, several teams of divers have explored the site. They have recovered some items such as dishes and silverware and put them on public display. And more trips are planned to the wreckage in the future. TheTitanicand its passengers and crew have been remembered in books, movies and TV programs. But there's a much more important contribution thatTitanicgave us. After she sank, lawmakers and shipbuilders made ships safer. It took a terrible tragedy to make ship travel safer for all.
answer:

How many countries does the Balmoral reach before sailing to New York?