Answer the following question: Information: - William Pitt the Younger, (28 May 1759 23 January 1806) was a British politician of the late 18th and early 19th centuries. He became the youngest Prime Minister in 1783 at the age of 24. He left office in 1801, but was Prime Minister again from 1804 until his death in 1806. He was also the Chancellor of the Exchequer throughout his premiership. Born William Pitt, he is known as "the Younger" to distinguish him from his father, William Pitt the Elder, who had previously served as Prime Minister. - The House of Commons of Great Britain was the lower house of the Parliament of Great Britain between 1707 and 1801. In 1707, as a result of the Acts of Union of that year, it replaced the House of Commons of England and the third estate of the Parliament of Scotland, as one of the most significant changes brought about by the Union of the kingdoms of England and Scotland into the Kingdom of Great Britain. In the course of the 18th century, the office of Prime Minister developed. The notion that a government remains in power only as long as it retains the support of Parliament also evolved, leading to the first ever motion of no confidence, when Lord North's government failed to end the American Revolution. The modern notion that only the support of the House of Commons is necessary for a government to survive, however, was of later development. Similarly, the custom that the Prime Minister is always a Member of the Lower House, rather than the Upper one, did not evolve until the twentieth century. - A motion of no confidence (alternatively vote of no confidence, no-confidence motion, or (unsuccessful) confidence motion) is a statement or vote that a person or persons in a position of responsibility (government, managerial, etc.) is no longer deemed fit to hold that position: perhaps because they are inadequate in some respect, are failing to carry out obligations, or are making decisions that other members feel are detrimental. As a parliamentary motion, it demonstrates to the head of state that the elected parliament no longer has confidence in (one or more members of) the appointed government. - The Chancellor and Under-Treasurer of Her Majesty's Exchequer, commonly known as the Chancellor of the Exchequer, is a senior official within the Government of the United Kingdom and head of Her Majesty's Treasury. The office is a British Cabinet-level position. - The British general election of 1784 resulted in William Pitt the Younger securing an overall majority of about 120 in the House of Commons of Great Britain , having previously had to survive in a House which was dominated by his opponents . What entity does 'british general election' has the relation 'office contested' with?
Answer:
prime minister