A group of children in uniforms stand outside.
Schoolchildren are waiting after a fire drill.
The children in uniforms are not necessarily schoolchildren.
exists e1 p1 x1 x2 x3.(exists s1.(Theme(s1,x1) & a_outside(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1) & in(x1,x3) & n_uniform(x3) & of(x1,x2) & n_child(x2) & n_group(x1))
exists e1 x1 x2 x3.(ne_nam_schoolchildren(x1) & after(e1,x2) & n_drill(x2) & of(x2,x3) & n_fire(x3) & Actor(e1,x1) & v_wait(e1))