A restaurant worker is cleaning a seat.
A dirty seat is being cleaned with disinfectant by a restaurant worker.
Just because a restaurant worker is cleaning a seat doesn't mean it is being cleaned with disinfectant
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_clean(e1) & n_seat(x3) & n_worker(x1) & of(x1,x2) & n_restaurant(x2))
exists e1 s1 x1 x2 x3 x4.(Actor(e1,x3) & n_worker(x3) & of(x3,x4) & n_restaurant(x4) & with(e1,x2) & n_disinfectant(x2) & Theme(e1,x1) & v_clean(e1) & n_seat(x1) & a_dirty(s1) & Theme(s1,x1))