A woman in a white shirt working on her laptop.
A woman in a white shirt is doing work on some laptop.
The fact that the woman is working on her laptop does not necessarily imply she is doing work.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_laptop(x4) & of(x4,x1) & n_female(x1) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_laptop(x4) & Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & n_work(x3) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_woman(x1))