A boat is illuminated at night.
The boat is outdoors.
A boat is outdoors illuminated because boats are in water.
exists e1 x1 x2.(at(e1,x2) & n_night(x2) & Theme(e1,x1) & v_illuminate(e1) & n_boat(x1))
exists p1 x1.(n_boat(x1) & exists x2.((x1 = x2) & n_outdoors(x2)))