A man in a blue shirt stands with his hands on his hips.
A man in a sky blue shirt is standing waiting.
Not all blue shirts are sky blue.  One can stand with their hands on their hips for any reason, not necessarily because they are waiting.
exists e1 s1 x1 x2 x3 x4.(with(e1,x3) & on(x3,x4) & n_hip(x4) & of(x4,x1) & n_male(x1) & n_male(x1) & n_hand(x3) & of(x3,x1) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists e2 e1 s1 x1 x2 x3.(for(e1,e2) & Actor(e2,x1) & v_wait(e2) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & of(x2,x3) & n_sky(x3) & n_man(x1))