Q:Information:  - 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.  - In team sports , captain is a title given to a member of the team . The title is frequently honorary , but in some cases the captain may have significant responsibility for strategy and teamwork while the game is in progress on the field . In either case , it is a position that indicates honor and respect from one 's teammates -- recognition as a leader by one 's peers . In association football ( soccer ) and cricket , a captain is also known as a skipper . Depending on the sport , team captains may be given the responsibility of interacting with game officials regarding application and interpretation of the rules . In many team sports , the captains represent their respective teams when the match official does the coin toss at the beginning of the game . Various sports have differing roles and responsibilities for team captains . In martial arts , the class lead instructor , acting under the direction and authority of the Master or a senior belt , may be called the captain .  - 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.    Given the information, choose the subject and object entities that have the relation of 'instance of'.
A:
captain  , activity