A medium sized animal in a lake
An animal swims in the lake.
WE DON'T KNOW THAT THE ANIMALS SWIMS.
exists e1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_lake(x3) & n_animal(x1) & Theme(e1,x1) & v_size(e1) & of(x1,x2) & n_medium(x2))
exists x1 x2 x3.(n_lake(x3) & a_topic(x1) & in(x1,x3) & n_swim(x1) & of(x1,x2) & n_animal(x2))