Some people are standing on the fire escape of their building looking over at some black smoke in the distance.
The people are practicing in case of a fire.
There is nothing to say that the people are practicing in case of a fire as opposed to some other reason for being outside on the fire escape.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_distance(x6) & n_building(x4) & of(x4,x2) & n_thing(x2) & n_escape(x2) & of(x2,x3) & n_fire(x3) & for(e1,e2) & a_over(s2) & Manner(e2,s2) & at(e2,x5) & in(x5,x6) & n_smoke(x5) & a_black(s1) & Theme(s1,x5) & Actor(e2,x1) & v_look(e2) & on(e1,x2) & of(x2,x4) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e1 x1 x2 x3.(n_people(x1) & in(e1,x2) & of(x2,x3) & n_fire(x3) & n_case(x2) & Actor(e1,x1) & v_practice(e1))