A motorcyclist dressed in red.
There is a motorcyclist dressed in blue
The motorcyclist can't be wearing red and blue at the same time.
exists e1 x1 x2.(in(e1,x2) & n_red(x2) & Theme(e1,x1) & v_dress(e1) & n_motorcyclist(x1))
exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & Theme(e1,s1) & Theme(s1,x4) & a_blue(s1) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_motorcyclist(x2))