A motorcyclist is driving down a road on their motorbike.
The motorcyclist is cleaning the bike.
One cannot be cleaning the motorbike at the same time as driving it.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_motorbike(x3) & of(x3,x1) & n_thing(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_road(x2) & n_motorcyclist(x1))
exists e1 x1 x2.(n_bike(x2) & n_motorcyclist(x1) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1))