A cooking staff working and preparing a meal.
The staff is sitting down for their lunch break.
If the staff is sitting down for their lunch break they are not working and preparing.
exists e1 e2 x1 x2 x3 x4 x5 x6.(Theme(e2,x6) & Actor(e2,x4) & v_prepare(e2) & n_meal(x6) & n_staff(x4) & of(x4,x5) & n_cooking(x5) & Theme(e1,x3) & Actor(e1,x1) & v_work(e1) & n_meal(x3) & n_staff(x1) & of(x1,x2) & n_cooking(x2))
exists e1 s1 x1 x2 x3.(n_break(x2) & of(x2,x3) & n_lunch(x3) & of(x2,x1) & n_thing(x1) & n_staff(x1) & for(e1,x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1))