The kid is on a float in the snow.
A man swims in a pool.
A man cannot be a kid. Also, if the person swims in a pool, they cannot be on a float in the snow.
exists p1 x1 x3.(n_snow(x3) & n_kid(x1) & exists x2.(on(x1,x2) & in(x2,x3) & n_float(x2)))
exists e1 x1 x2.(in(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_swim(e1) & n_man(x1))