sentence: Water polo is a team game.
sentences_after: Two teams play a match. Each match has four periods called 'quarters'. The length of each period is usually between 5 to 8 minutes. Because the amount of time spent on fouls or out throws is not counted in the quarter time, an average quarter really lasts around 12 minutes.
concept_name: water polo
headings: Water polo Outline
categories: Summer Olympic sports