The Total Citroen racing car is on a rugged road.
The road is smooth.
The road is either rugged or it is smooth.
exists p1 s1 x1 x2 x3.(n_car(x1) & of(x1,x3) & n_racing(x3) & (x1 = x2) & ne_nam_citroen(x2) & a_total(s1) & Theme(s1,x1) & exists s2 x4.(on(x1,x4) & n_road(x4) & a_rugged(s2) & Theme(s2,x4)))
exists s1 x1.(n_road(x1) & Theme(s1,x1) & a_smooth(s1))