Information:  - The Liga Portuguesa de Futebol Profissional (Portuguese Professional Football League), also known by its acronym LPFP, or Liga Portugal, is a governing body that manages professional football club competitions in Portugal. It was founded in 1978 and works as an autonomous organism under the authority of the Portuguese Football Federation. As of 28 July 2015, its president is former Portuguese international referee Pedro Proença.  - The Primeira Liga ( Portuguese : ( pimj li ) ; English : First League ) , also known as Liga NOS for sponsorship reasons , is the top professional association football division of the Portuguese football league system . It is organised and supervised by the Liga Portuguesa de Futebol Profissional . As of the 2014 -- 15 season , the Primeira Liga is contested by 18 teams , with the two lowest placed teams relegated to the Segunda Liga and replaced by the top - two non-reserve teams from this division . Founded in 1934 as an experimental league , it was officialised in 1938 and named Primeira Divisão ( First Division ) until 1999 , when it recovered the original naming . A total of 70 teams have competed in the Primeira Liga , but only five have been crowned champions . Among them , the `` Big Three '' -- Benfica ( 34 ) , Porto ( 27 ) and Sporting CP ( 18 ) -- have won all but two Primeira Liga titles ; the other winners are Belenenses ( 1945 -- 46 ) and Boavista ( 2000 -- 01 ) . Benfica have won the Primeira Liga a record 34 times , followed by Porto with 27 and Sporting CP with 18 wins . The Primeira Liga has increased its reputation in the last few years , occupying the 5th place of UEFA 's league ranking . It broke into the top five for the first time in the 2011 -- 12 season , passing the French Ligue 1 , one of the historical `` big five '' European leagues , for the first time since 1990 . The Primeira Liga also reached a world ranking of 4th according to IFFHS 's 2011 ranking .  - Pedro Proença Oliveira Alves Garcia (born 3 November 1970) is a retired Portuguese football referee.   - The Portuguese Football Federation (FPF) (FPF) is the governing body of football in Portugal. It organises the Campeonato Nacional de Seniores, the Taça de Portugal, the Supertaça Cândido de Oliveira, youth levels, women's football, beach soccer, futsal, and also the men's and the women's national football teams. Formed in 1914, it is based in the city of Oeiras.  - The Portuguese association football league system is the following:  - A team sport includes any sport which involves two or more players working together towards a shared objective. A team sport is an activity in which individuals are organized into opposing teams which compete to win. Examples are basketball, volleyball, water polo, handball, lacrosse, cricket, baseball, and the various forms of football and hockey.  - Association football, more commonly known as football or soccer, is a team sport played between two teams of eleven players with a spherical ball. It is played by 250 million players in over 200 countries and dependencies, making it the world's most popular sport. The game is played on a rectangular field with a goal at each end. The object of the game is to score by getting the ball into the opposing goal.  - Portugal (Portuguese: ), officially the Portuguese Republic (Portuguese: ), is a country on the Iberian Peninsula in Southwestern Europe. It is the westernmost country of mainland Europe. To the west and south it is bordered by the Atlantic Ocean and to the east and north by Spain. The PortugalSpain border is long and considered the longest uninterrupted border within the European Union. The republic also includes the Atlantic archipelagos of the Azores and Madeira, both autonomous regions with their own regional governments.    What is the relationship between 'primeira liga' and 'association football league'?
The answer to this question is:
instance of