The little girl is wearing a floating device in the water.
The child is swimming in a pool.
There is no mention of whether the girl is swimming or floating and there is no mention of being in a pool.
exists e1 s1 s2 x1 x2 x3.(n_water(x3) & n_girl(x1) & a_little(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & in(x2,x3) & n_device(x2) & a_floating(s2) & Theme(s2,x2))
exists e1 x1 x2.(n_child(x1) & in(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_swim(e1))