A worker making sure his machine is working correctly.
The worker and the machine are outdoors.
it's possible for a worker to make sure his machine is working correctly indoors or outdoors.
exists e1 p1 x1 x2 x3.(a_topic(x1) & exists e2 p2.(exists e3 s1.(a_correctly(s1) & Manner(e3,s1) & Actor(e3,x3) & v_work(e3)) & Topic(e2,p2) & Actor(e2,x2) & v_sure(e2)) & n_machine(x3) & of(x3,x1) & n_male(x1) & Topic(e1,p1) & Actor(e1,x2) & v_make(e1) & (x1 = x2) & n_worker(x1))
exists p1 x1 x2 x3.(n_machine(x3) & n_worker(x2) & exists x4.((x1 = x4) & n_outdoors(x4)) & subset_of(x3,x1) & subset_of(x2,x1))