Input: Read this: By the end of the month, the Peloponnese was in open revolt against the Ottomans and by October 1821 the Greeks under Theodoros Kolokotronis had captured Tripolitsa. The Peloponnesian revolt was quickly followed by revolts in Crete, Macedonia and Central Greece, which would soon be suppressed. Meanwhile, the makeshift Greek navy was achieving success against the Ottoman navy in the Aegean Sea and prevented Ottoman reinforcements from arriving by sea. In 1822 and 1824 the Turks and Egyptians ravaged the islands, including Chios and Psara, committing wholesale massacres of the population. This had the effect of galvanizing public opinion in western Europe in favor of the Greek rebels.[page needed]
Question: In what year did the Greeks take Tripolitsa?

Output: 1821


Input: Read this: Everton have a large fanbase, with the eighth highest average attendance in the Premier League in the 2008–09 season. The majority of Everton's matchday support comes from the North West of England, primarily Merseyside, Cheshire, West Lancashire and parts of Western Greater Manchester along with many fans who travel from North Wales and Ireland. Within the city of Liverpool support for Everton and city rivals Liverpool is not determined by geographical basis with supporters mixed across the city. However Everton's support heartland is traditionally based in the North West of the city and in the southern parts of Sefton. Everton also have many supporters' clubs worldwide, in places such as North America, Singapore, Indonesia, Lebanon, Malaysia, Thailand, and Australia. The official supporters club is FOREVERTON, and there are also several fanzines including When Skies are Grey and Speke from the Harbour, which are sold around Goodison Park on match days.
Question: Where does the majority of Everton's matchday support hail from?

Output: North West of England


Input: Read this: Elizabeth was born in London to the Duke and Duchess of York, later King George VI and Queen Elizabeth, and was the elder of their two daughters. She was educated privately at home. Her father acceded to the throne on the abdication of his brother Edward VIII in 1936, from which time she was the heir presumptive. She began to undertake public duties during World War II, serving in the Auxiliary Territorial Service. In 1947, she married Philip, Duke of Edinburgh, with whom she has four children: Charles, Anne, Andrew, and Edward.
Question: How many children did Elizabeth's parents have?

Output: two daughters


Input: Read this: Epigenetics is the study of mitotically and/or meiotically heritable changes in gene function that cannot be explained by changes in the underlying DNA sequence but cause the organism's genes to behave (or "express themselves") differently. One example of epigenetic change is the marking of the genes by DNA methylation which determines whether they will be expressed or not. Gene expression can also be controlled by repressor proteins that attach to silencer regions of the DNA and prevent that region of the DNA code from being expressed. Epigenetic marks may be added or removed from the DNA during programmed stages of development of the plant, and are responsible, for example, for the differences between anthers, petals and normal leaves, despite the fact that they all have the same underlying genetic code. Epigenetic changes may be temporary or may remain through successive cell divisions for the remainder of the cell's life. Some epigenetic changes have been shown to be heritable, while others are reset in the germ cells.
Question: What does epigenetics study?

Output:
changes in gene function