premise: A pro-baseball pitcher sends a curve ball to his opponent while many fans relax and enjoy the game.
hypothesis: A pitcher is playing baseball
explanation_1: A pro-baseball pitcher is also a pitcher and his sending a curve ball is part of the description of playing baseball.
explanation_2: A pro-baseball pitcher throws a curve ball, and this action is usually toward an opponent.
explanation_3: The pitcher is mentioned in both sentences. The first sentence states the pitcher is pro-baseball and sends a curve ball, so it's implied he is playing baseball.
premise_logic: exists e1 p1 s1 x1 x2 x3 x4 x7.(n_game(x7) & exists e2 e3 x5 x6.(Theme(e3,x7) & Actor(e3,x6) & v_enjoy(e3) & n_fan(x6) & n_quantity(x6) & Actor(e2,x5) & v_relax(e2) & n_fan(x5) & n_quantity(x5)) & while(e1,p1) & to(e1,x4) & n_opponent(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_send(e1) & n_ball(x2) & of(x2,x3) & n_curve(x3) & n_pitcher(x1) & a_pro-baseball(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_baseball(x2) & n_pitcher(x1))