A man shoots a gun at a competition.
A man shoots his gun in a competition.
Just because a man shoots a gun does not mean it is his gun.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_shoot(e1) & at(x2,x3) & n_competition(x3) & n_gun(x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_shoot(e1) & in(x2,x3) & n_competition(x3) & n_gun(x2) & of(x2,x1) & n_male(x1) & n_man(x1))