Young boy plays with sparks near a pond.
A young girl plays in a pond.
A boy is not a girl. Someone playing with sparks which is fire would not be in a pond which is wet. Near a pond is not the same thing as being in a pond.
exists e1 s1 x1 x2 x3.(with(e1,x2) & near(x2,x3) & n_pond(x3) & n_sparks(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(in(e1,x2) & n_pond(x2) & Actor(e1,x1) & v_play(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))