Workers are setting-up to work in the London tubes.
the workers are swimmign
Workers can be either setting-up to work or are swimming.
exists p1 s1 x1 x2 x3.(n_tube(x2) & (x2 = x3) & ne_geo_london(x3) & Topic(s1,p1) & Actor(s1,x1) & a_setting-up(s1) & exists e1.(in(e1,x2) & Actor(e1,x1) & v_work(e1)) & n_worker(x1))
exists e1 x1.(n_worker(x1) & Theme(e1,x1) & v_swimmign(e1))