Question: How long is a rainbow six siege game?

Disambiguated questions and answers:
context: In online matches, when a round begins the attackers choose one of several spawn points from which to launch their attack while defenders do the same from which to defend from. A one-minute preparatory period will then commence wherein the attackers are then given control over mecanum-wheeled drones to scout the map in search of enemy operators, traps and defensive set-ups in addition to the target objective(s), while the opposition establishes their defences and tries to do so without having the defensive and target objective(s) details being discovered, chiefly through destroying the drones. Maps in the game are designed to encourage close quarters combat, and players cannot respawn until the end of a round. Players who were killed by opponents can enter "Support Mode", which allows them to gain access to drone's cameras and security cameras so that they can continue to contribute to their team by informing them of opponent locations and activities. Matches last only four minutes for a casual and three minutes for a ranked. Teamwork and cooperation are encouraged in "Siege", and players need to take advantage of their different abilities in order to complete the objective and defeat the enemy team. Communication between players is also heavily encouraged. The game also has a spectator mode, which allows players to observe a match from different angles.
question: How long does a casual match last in Rainbow Six Siege?
short_answers: four minutes
wikipage: Tom Clancy's Rainbow Six Siege

context: In online matches, when a round begins the attackers choose one of several spawn points from which to launch their attack while defenders do the same from which to defend from. A one-minute preparatory period will then commence wherein the attackers are then given control over mecanum-wheeled drones to scout the map in search of enemy operators, traps and defensive set-ups in addition to the target objective(s), while the opposition establishes their defences and tries to do so without having the defensive and target objective(s) details being discovered, chiefly through destroying the drones. Maps in the game are designed to encourage close quarters combat, and players cannot respawn until the end of a round. Players who were killed by opponents can enter "Support Mode", which allows them to gain access to drone's cameras and security cameras so that they can continue to contribute to their team by informing them of opponent locations and activities. Matches last only four minutes for a casual and three minutes for a ranked. Teamwork and cooperation are encouraged in "Siege", and players need to take advantage of their different abilities in order to complete the objective and defeat the enemy team. Communication between players is also heavily encouraged. The game also has a spectator mode, which allows players to observe a match from different angles.
question: How long does a ranked match last in Rainbow Six Siege?
short_answers: three minutes
wikipage: Tom Clancy's Rainbow Six Siege

Long answers:
knowledge: content: Tom Clancy's Rainbow Six Siege is an online tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft. 
long_answer: In Tom Clancy's Rainbow Six Siege online tactical shooter video game, casual matches last only four minutes while ranked matches last three minutes. 

knowledge: content: Tom Clancy's Rainbow Six Siege is an online tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft.
wikipage: Tom Clancy's Rainbow Six Siege
long_answer: Tom Clancy's Rainbow Six Siege is an online tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft. In online matches, when a round begins the attackers choose one of several spawn points from which to launch their attack while defenders do the same from which to defend from. A one-minute preparatory period will then commence wherein the attackers are then given control over mecanum-wheeled drones to scout the map in search of enemy operators, traps and defensive set-ups in addition to the target objective(s), while the opposition establishes their defences and tries to do so without having the defensive and target objective(s) details being discovered, chiefly through destroying the drones. Matches last only four minutes for a casual match and three minutes for a ranked match.