4. Consider the following extensive form game. Specify all the pure strategy subgame perfect equilibria (SPE), weak perfect Bayesian equilibria (WPBE) and sequential equilibria (SE). (For WPBE and SE, you need to specify both the strategy profile and the beliefs, in this case, player 3's belief. You also need to verify sequential rationality and (weak) consistency.) 4. Consider the following extensive form game. Specify all the pure strategy subgame perfect equilibria (SPE), weak perfect Bayesian equilibria (WPBE) and sequential equilibria (SE). (For WPBE and SE, you need to specify both the strategy profile and the beliefs, in this case, player 3's belief. You also need to verify sequential rationality and (weak) consistency.)