The little boy swims under the water.
The little boy is asleep in bed.
The boy can'tbe asleep in bed at the same time as he swims under water.
exists s1 x1 x2 x3.(n_water(x3) & n_swim(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1) & a_topic(x1) & under(x1,x3))
exists s1 s2 x1 x2.(n_boy(x1) & a_little(s1) & Theme(s1,x1) & in(s2,x2) & n_bed(x2) & Theme(s2,x1) & a_asleep(s2))