A small white boat is floating in the water.
There is a large red boat.
A small white boat is not the same as a large red boat.
exists e1 s1 s2 x1 x2.(n_water(x2) & in(e1,x2) & Actor(e1,x1) & v_float(e1) & n_boat(x1) & a_white(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
exists p1 x1 s1 s2 x2.((x1 = x2) & n_boat(x2) & a_red(s2) & Theme(s2,x2) & a_large(s1) & Theme(s1,x2))