a Boy is swinging a baseball bat.
A child is swinging a golf club.
A baseball bat isn't the same as a golf club.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_swing(e1) & n_bat(x2) & of(x2,x3) & n_baseball(x3) & ne_org_boy(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_swing(e1) & n_club(x2) & of(x2,x3) & n_golf(x3) & n_child(x1))