Workers in a factory watch a machine.
Workers gather around the machinery.
Watch a machine implies the workers gather around the machinery.
exists x1.(all x2.(n_machine(x2) -> exists x3 x4.(a_topic(x1) & in(x1,x3) & for(x3,x2) & n_watch(x3) & of(x3,x4) & n_factory(x4))) & n_worker(x1))
exists e1 x1 x2.(n_machinery(x2) & around(e1,x2) & Actor(e1,x1) & v_gather(e1) & n_worker(x1))