The men are busy fixing the water leak in the city.
Someone burst a pipe and the men had to fix it.
Although they are fixing a pipe, it doesn't mean that someone burst it.
exists e1 p1 x1 x2 x3 x4.(n_city(x4) & n_leak(x2) & of(x2,x3) & n_water(x3) & n_man(x1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_fix(e2) & in(x2,x4)) & Topic(e1,p1) & Actor(e1,x1) & v_busy(e1))
exists e1 p1 x1 x2 x3 x4.(n_thing(x4) & n_man(x4) & for(e1,x1) & Topic(e1,p1) & Actor(e1,x2) & v_have(e1) & exists e2.(Theme(e2,x4) & Actor(e2,x2) & v_fix(e2)) & subset_of(x4,x2) & subset_of(x3,x2) & n_pipe(x3) & n_burst(x1))