Two boys rest on a log floating along the bank of a body of water.
a couple of boys are on a log on a river in spain
Body of water does not necessarily imply a river in Spain.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_bank(x5) & a_topic(x1) & on(x1,x3) & along(e1,x5) & of(x5,x6) & of(x6,x7) & n_water(x7) & n_body(x6) & Actor(e1,x4) & v_float(e1) & (x3 = x4) & n_log(x3) & n_rest(x1) & of(x1,x2) & n_boy(x2) & card_eq_2(x1))
exists p1 x1 x2.(exists x3 x4 x5.(on(x1,x3) & on(x3,x4) & in(x4,x5) & n_spain(x5) & n_river(x4) & n_log(x3)) & of(x1,x2) & n_boy(x2) & n_couple(x1))