Cement truck with a yellow mixer parked in front of a building.
A truck is waiting to unload cement outside on a building
Just because a cement truck is parked outside a building, does not mean that it will unload cement there.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & with(x1,x3) & in(e1,x5) & of(x5,x6) & n_building(x6) & n_front(x5) & Theme(e1,x4) & v_park(e1) & (x3 = x4) & n_mixer(x3) & a_yellow(s1) & Theme(s1,x3) & n_truck(x1) & (x1 = x2) & ne_nam_cement(x2))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 s1 x2 x3.(on(e2,x3) & n_building(x3) & a_outside(s1) & Manner(e2,s1) & Theme(e2,x2) & Actor(e2,x1) & v_unload(e2) & n_cement(x2)) & n_truck(x1))