Children getting splashed with water.
There are several children.
Children mean there are more than one child so there are several children.
exists e1 p1 x1.(ne_nam_children(x1) & exists e2 x2.(with(e2,x2) & n_water(x2) & Theme(e2,x1) & v_splash(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1))
exists p1 x1 s1 x2.((x1 = x2) & n_child(x2) & a_several(s1) & Theme(s1,x2))