A woman in sunglasses walks down the street, carrying a blue bag.
The woman is on a shopping trip.
A woman carrying a bag doesn't mean she's shopping nor on a shopping trip.
exists e1 e2 s1 x1 x2 x3 x4.(n_street(x3) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_carry(e2) & n_bag(x4) & a_blue(s1) & Theme(s1,x4) & down(e1,x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_sunglass(x2) & n_woman(x1))
exists p1 x1.(n_woman(x1) & exists x2 x3.(on(x1,x2) & n_trip(x2) & of(x2,x3) & n_shopping(x3)))