A woman stands with her arms out in a store while another woman holds a camera.
The 2 women are sisters.
Just because these women are with each other doesn't mean they are sisters.
exists e1 p1 s1 x1 x2 x3.(exists e2 x4 x5.(Theme(e2,x5) & Actor(e2,x4) & v_hold(e2) & n_camera(x5) & n_woman(x4) & -(x4 = x1)) & n_woman(x1) & n_woman(x1) & while(e1,p1) & in(e1,x3) & n_store(x3) & a_out(s1) & Manner(e1,s1) & with(e1,x2) & n_arm(x2) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_stand(e1))
exists p1 x1.(n_woman(x1) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1) & exists x2.((x1 = x2) & n_sister(x2)))