A group of workers are waiting to be picked up.
The workers are at the bus stop.
Not all workers waiting to be picked up are at the bus stop.
exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 s1.(a_up(s1) & Manner(e2,s1) & Theme(e2,x1) & v_pick(e2)) & of(x1,x2) & n_worker(x2) & n_group(x1))
exists p1 x1 x2 x3.(n_stop(x2) & of(x2,x3) & n_bus(x3) & n_worker(x1) & at(x1,x2))