Two African American males looking into the camera while their photo is taken.
Two siblings are having their photo taken by a professional photographer.
That the two males are looking into the camera does not imply any sort of relationship, such as that they are siblings. The photo could be being taken by an amateur just as much as by a professional photographer.
exists e1 p1 s1 s2 x1 x2 x3 x4.(n_photo(x4) & of(x4,x3) & n_thing(x3) & n_camera(x3) & a_topic(x1) & exists e2.(Theme(e2,x4) & v_take(e2)) & while(e1,p1) & into(e1,x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_male(x1) & a_american(s2) & Theme(s2,x1) & a_african(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & Actor(e1,x4) & n_photographer(x4) & a_professional(s1) & Theme(s1,x4) & Theme(e1,x3) & v_take(e1) & (x2 = x3) & n_photo(x2) & of(x2,x1) & n_thing(x1) & n_sibling(x1) & card_eq_2(x1))