A man with a shopping bag and a woman are looking at a camera.
A man and woman just finished shopping and are taking a picture.
The presence of a man does not mean there is also a woman.  A shopping bag is not always used with shopping.  The man could have just finished an activity or be getting ready for an activity.  The presence of a camera does not mean someone is taking a picture.
exists e1 x1 x2 x3 x4 x5 x6.(at(e1,x6) & n_camera(x6) & Actor(e1,x1) & v_look(e1) & with(x1,x2) & subset_of(x5,x2) & n_woman(x5) & subset_of(x3,x2) & n_bag(x3) & of(x3,x4) & n_shopping(x4) & n_man(x1))
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e2,x8) & Actor(e2,x5) & v_take(e2) & n_picture(x8) & n_woman(x7) & n_man(x6) & subset_of(x7,x5) & subset_of(x6,x5) & a_just(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_finish(e1) & n_shopping(x4) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))