A motorcycle is being driven by someone wearing red clothes and a helmet.
The helmet has a clear visor.
Not all motorcycle helmets have a clear visor.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(Actor(e1,x2) & subset_of(x6,x2) & n_helmet(x6) & subset_of(x3,x2) & Theme(e2,x5) & Actor(e2,x4) & v_wear(e2) & n_clothes(x5) & a_red(s1) & Theme(s1,x5) & (x3 = x4) & n_person(x3) & Theme(e1,x1) & v_drive(e1) & n_motorcycle(x1))
exists e1 s1 x1 x2.(n_helmet(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_visor(x2) & a_clear(s1) & Theme(s1,x2))