Al, Bob, and Charles are neighbors and have to choose whether to contribute toward the creation of a flower garden for their small street. The size and splendor of the garden depend on how many people contribute: three contributors will produce the largest and best garden, two will produce a medium garden, and one will produce a small garden. In each of the cells below, the payoff is listed for in order for Al, Bob, and Charles (e.g., If Al contribute, Bob does not, and Charles does not, their payoffs are 1,4, and 4 respectively).

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Contribute Charles Don't Bob Bob Contribute Don't Contribute Don't Contribute 5,5,5 3,6,3 Contribute 3,3,6 1,4,4 Don't 6,3,3 4,4,1 Don't 4,1,4 2,2,2 Contribute Charles Don't Bob Bob Contribute Don't Contribute Don't Contribute 5,5,5 3,6,3 Contribute 3,3,6 1,4,4 Don't 6,3,3 4,4,1 Don't 4,1,4 2,2,2