The workers prepare the large tube for hauling.
The workers are on lunch break.
The workers cannot prepare the tube for hauling while being on lunch break.
exists e1 s1 x1 x2 x3.(n_tube(x2) & a_large(s1) & Theme(s1,x2) & n_worker(x1) & for(e1,x3) & n_hauling(x3) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1))
exists p1 x1.(n_worker(x1) & exists x2 x3.(on(x1,x2) & n_break(x2) & of(x2,x3) & n_lunch(x3)))