Firemen stand outside a burning building with lots of smoke.
The firemen realize someone is trapped inside the building.
The firemen stand outside of a burning building but they don't necessarily realize someone is trapped in the building.
exists e1 x1 x2 x3 x4 x5.(outside(e1,x2) & with(x2,x4) & of(x4,x5) & n_smoke(x5) & n_lot(x4) & n_building(x2) & of(x2,x3) & n_burning(x3) & Actor(e1,x1) & v_stand(e1) & n_fireman(x1))
exists e1 p1 x1 x3.(n_building(x3) & n_fireman(x1) & exists e2 x2.(inside(e2,x3) & Theme(e2,x2) & v_trap(e2) & n_person(x2)) & Topic(e1,p1) & Actor(e1,x1) & v_realize(e1))