A girl is walking away from the pitcher mound.
A child is swimming.
If a girl is walking away from the pitcher mound, the child is playing baseball, not swimming.
exists e1 x1 x2 x3.(n_mound(x2) & of(x2,x3) & n_pitcher(x3) & from(e1,x2) & r_away(e1) & Actor(e1,x1) & v_walk(e1) & n_girl(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_child(x1))