Input: Read this: Bacteria can be grown in the laboratory on nutrient culture media, but viruses need living cells in which to replicate. Many vaccines to infectious diseases can be grown in fertilised chicken eggs. Millions of eggs are used each year to generate the annual flu vaccine requirements, a complex process that takes about six months after the decision is made as to what strains of virus to include in the new vaccine. A problem with using eggs for this purpose is that people with egg allergies are unable to be immunised, but this disadvantage may be overcome as new techniques for cell-based rather than egg-based culture become available. Cell-based culture will also be useful in a pandemic when it may be difficult to acquire a sufficiently large quantity of suitable sterile, fertile eggs.
Question: Why is there no difficulty faced in using poultry to cultivate vaccines?

Output: unanswerable

QUES: The verbal system lacks a distinctive future tense (the present tense serves here) and features special forms to express an action performed by an undetermined subject (the "impersonal").

From what system is a distinctive future tense lacking?
What is the answer?
ANS: verbal system

QUES: Madonna released the song "Hey You" for the Live Earth series of concerts. The song was available as a free download during its first week of release. She also performed it at the London Live Earth concert. Madonna announced her departure from Warner Bros. Records, and a new $120 million, ten-year 360 deal with Live Nation. She produced and wrote I Am Because We Are, a documentary on the problems faced by Malawians. The documentary was directed by Nathan Rissman, who worked as Madonna's gardener. She also directed her first film Filth and Wisdom. The plot of the film revolved around three friends and their aspirations. The Times said she had "done herself proud" while The Daily Telegraph described the film as "not an entirely unpromising first effort [but] Madonna would do well to hang on to her day job." In December 2007, the Rock and Roll Hall of Fame announced Madonna as one of the five inductees of 2008. At the induction ceremony on March 10, 2008, Madonna did not sing but asked fellow Hall of Fame inductees and Michigan natives The Stooges to perform her songs "Burning Up" and "Ray of Light". She thanked Christopher Flynn, her dance teacher from 35 years earlier, for his encouragement to follow her dreams.
Who was one of the five inductees of the Rock and Roll Hall of Fame?

ANS: Madonna

The abbey's two western towers were built between 1722 and 1745 by Nicholas Hawksmoor, constructed from Portland stone to an early example of a Gothic Revival design. Purbeck marble was used for the walls and the floors of Westminster Abbey, even though the various tombstones are made of different types of marble. Further rebuilding and restoration occurred in the 19th century under Sir George Gilbert Scott.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What were the three western towers built from?
Ah, so.. unanswerable

Question: All of the executions which have taken place since the 1936 hanging of Bethea in Owensboro have been conducted within a wall or enclosure. For example, Fred Adams was legally hanged in Kennett, Missouri, on April 2, 1937, within a 10-foot (3 m) wooden stockade. Roscoe "Red" Jackson was hanged within a stockade in Galena, Missouri, on May 26, 1937. Two Kentucky hangings were conducted after Galena in which numerous persons were present within a wooden stockade, that of John "Peter" Montjoy in Covington, Kentucky on December 17, 1937, and that of Harold Van Venison in Covington on June 3, 1938. An estimated 400 witnesses were present for the hanging of Lee Simpson in Ryegate, Montana, on December 30, 1939. The execution of Timothy McVeigh on June 11, 2001 was witnessed by some 300 people, some by closed-circuit television.
Try to answer this question if possible: On what date was Fred Adams hanged?
Answer: April 2, 1937

Input: Read this: Evidence exists that native peoples traveled through Oklahoma as early as the last ice age. Ancestors of the Wichita and Caddo lived in what is now Oklahoma. The Panhandle culture peoples were precontact residents of the panhandle region. The westernmost center of the Mississippian culture was Spiro Mounds, in what is now Spiro, Oklahoma, which flourished between AD 850 and 1450. Spaniard Francisco Vasquez de Coronado traveled through the state in 1541, but French explorers claimed the area in the 1700s and it remained under French rule until 1803, when all the French territory west of the Mississippi River was purchased by the United States in the Louisiana Purchase.
Question: When did France sell Oklahoma's land to the US?

Output:
1803