A baseball player in a gray uniform is catching a ground ball in his glove.
There is a player in a gray uniform playing baseball.
catching a ground ball doesn't always mean playing baseball.
exists e1 s1 x1 x2 x3 x4 x5 x6.(in(e1,x6) & n_glove(x6) & of(x6,x1) & n_male(x1) & Theme(e1,x4) & Actor(e1,x1) & v_catch(e1) & n_ball(x4) & of(x4,x5) & n_ground(x5) & in(x1,x3) & n_uniform(x3) & a_gray(s1) & Theme(s1,x3) & n_player(x1) & of(x1,x2) & n_baseball(x2))
exists p1 x1 e1 s1 x2 x3 x4 x5.((x1 = x2) & in(x2,x3) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & n_baseball(x5) & (x3 = x4) & n_uniform(x3) & a_gray(s1) & Theme(s1,x3) & n_player(x2))