Workers are sorting items in a truck.
The workers are asleep under the truck.
The workers cannot be sorting and sleeping.
exists e1 x1 x2 x3.(in(e1,x3) & n_truck(x3) & Theme(e1,x2) & Actor(e1,x1) & v_sort(e1) & n_item(x2) & n_worker(x1))
exists s1 x1 x2.(n_truck(x2) & n_worker(x1) & under(s1,x2) & Theme(s1,x1) & a_asleep(s1))