A woman in a pink shirt approaches a mobile coffee vendor.
A lady does not use electronic machines.
A woman in a pink shirt is a very specific and saying a lady is very general and could mean anyone.
exists e1 s1 s2 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_approach(e1) & n_vendor(x3) & of(x3,x4) & n_coffee(x4) & a_mobile(s2) & Theme(s2,x3) & in(x1,x2) & n_shirt(x2) & a_pink(s1) & Theme(s1,x2) & n_woman(x1))
exists x1.(-exists e1 s1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_machine(x2) & a_electronic(s1) & Theme(s1,x2)) & n_lady(x1))