A boy standing with one leg in water and one leg held up over the surface.
a boy in water
A boy is just in water.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_surface(x7) & over(e2,x7) & a_up(s1) & Manner(e2,s1) & Actor(e2,x1) & v_hold(e2) & subset_of(x6,x1) & n_leg(x6) & card_eq_1(x6) & subset_of(x2,x1) & in(e1,x5) & n_water(x5) & with(e1,x4) & n_leg(x4) & card_eq_1(x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_boy(x2))
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_water(x2) & n_boy(x1))