A resting security guard, in a blue shirt, sitting on a stool.
A security guard standing on a stool.
If the guard is sitting on a stool, he or she is not standing on a stool.
exists e2 e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e2,x5) & n_stool(x5) & Actor(e2,x4) & v_sit(e2) & (x1 = x4) & in(x1,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x3) & n_guard(x1) & of(x1,x2) & n_security(x2) & Actor(e1,x1) & v_rest(e1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_stool(x4) & Actor(e1,x3) & v_stand(e1) & (x1 = x3) & n_guard(x1) & of(x1,x2) & n_security(x2))