Information: - A double dissolution is a procedure permitted under the Australian Constitution to resolve deadlocks in the bicameral Parliament of Australia between the House of Representatives (lower house) and the Senate (upper house). A double dissolution is the only circumstance in which the entire Senate can be dissolved. - John Douglas Anthony (born 31 December 1929) is a former Australian politician. He was leader of the National Party from 1971 to 1984, and Deputy Prime Minister from 1971 to 1972 and again from 1975 to 1983. - John Malcolm Fraser (21 May 1930 20 March 2015) was an Australian politician who was the 22nd Prime Minister of Australia and the Leader of the Liberal Party from 1975 to 1983. - The Australian Labor Party (ALP, also Labor, was Labour before 1912) is a political party in Australia. The party has been in opposition at federal level since the 2013 election. Bill Shorten has been the party's federal parliamentary leader since 13 October 2013. The party is a federal party with branches in each state and territory. Labor is in government in the states of Victoria, Queensland, South Australia, and in the Australian Capital Territory and Northern Territory. The party competes against the Liberal/National Coalition for political office at the federal and state (and sometimes local) levels. - Federal elections were held in Australia on 5 March 1983 . All 125 seats in the House of Representatives , and all 64 seats in the Senate , were up for election , following a double dissolution . The incumbent coalition government in power since 1975 , led by Malcolm Fraser ( Liberal Party of Australia ) and Doug Anthony ( National Party of Australia ) , was defeated by the opposition Australian Labor Party led by Bob Hawke . - William Richard "Bill" Shorten (born 12 May 1967) is an Australian politician who is the current Leader of the Opposition in the Parliament of Australia, in his capacity as Leader of the Australian Labor Party, after being elected party leader at the 2013 Labor leadership ballot. Shorten led Labor at the 2016 federal election at which the Liberal/National Coalition retained majority government. - Robert James Lee "Bob" Hawke (born 9 December 1929) is an Australian politician who was the Prime Minister of Australia and the Leader of the Labor Party from 1983 to 1991. - The Prime Minister of the Commonwealth of Australia is the head of government in Australia. The individual who holds the office is the most senior Minister of the Crown, the leader of the Cabinet and the chairperson of the National Security Committee. The office is not mentioned in the Constitution of Australia and exists only through an unwritten political convention and tradition. Despite this, in practice it is the most powerful parliamentary position in Australia. The individual who holds the office is commissioned by the Governor-General of Australia. - The Parliament of the Commonwealth of Australia, variously referred to as the Australian Parliament, the Commonwealth Parliament or the Federal Parliament, is the legislative branch of the government of Australia. It consists of three elements: the Queen of Australia, the Senate and the House of Representatives. The Queen is represented by the Governor-General. The combination of two elected houses, in which the members of the Senate represent the six States and the two self-governing Territories while the members of the House represent electoral divisions according to population, is modelled on the United States Congress. Through both houses, however, there is a fused executive, drawn from the Westminster System. What entity does 'australian federal election' has the relation 'office contested' with?
Answer:
prime minister of australia