Please answer the following question: Information: - The Prime Minister of New Zealand is the head of government of New Zealand. The current prime minister is Bill English of the National Party, who took office on 12 December 2016. - The New Zealand Labour Party, or simply Labour, is a centre-left political party in New Zealand. The party was formed in 1916, making it New Zealand's oldest extant political party. With its historic rival, the New Zealand National Party, Labour has dominated New Zealand governments since the 1930s. Labour currently promotes a social-democratic platform. - Norman Eric Kirk (6 January 1923 31 August 1974) was the 29th Prime Minister of New Zealand from 1972 until his sudden death in 1974. He led the Parliamentary wing of the New Zealand Labour Party from 1965 to 1974. He was the fourth Labour Prime Minister of New Zealand. Kirk had a reputation as the most formidable debater of his time and once famously said that people don't want much, just "Someone to love, somewhere to live, somewhere to work and something to hope for." - Sir Wallace Edward Rowling , KCMG PC ( 15 November 1927 -- 31 October 1995 ) , often known as Bill Rowling , was the 30th Prime Minister of New Zealand . He was in office for just over a year , having been appointed Prime Minister following the death of the highly popular Norman Kirk . Rowling was unable to retain the premiership but remained leader of the Labour Party until 1983 . What entity does 'bill rowling' has the relation 'member of political party' with?
A:
new zealand labour party