The kid is on a float in the snow.
It is winter.
Because a kid is in the snow, it implies that it is winter.
exists p1 x1 x3.(n_snow(x3) & n_kid(x1) & exists x2.(on(x1,x2) & in(x2,x3) & n_float(x2)))
exists p1 x1.(n_thing(x1) & exists x2.((x1 = x2) & n_winter(x2)))