A girl in pink is holding onto a young boy wearing red.
A sister is holding onto her brother in all black.
A boy can be wearing red or in all black but not both.
exists e2 e1 s1 x1 x2 x3 x4.(onto(e1,x3) & n_red(x3) & Actor(e2,x3) & v_wear(e2) & of(x3,x4) & n_boy(x4) & a_young(s1) & Theme(s1,x3) & Actor(e1,x1) & v_hold(e1) & in(x1,x2) & n_pink(x2) & n_girl(x1))
exists e1 x1 x2.(all x3.(n_black(x3) -> (onto(e1,x2) & in(x2,x3))) & n_brother(x2) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_hold(e1) & n_sister(x1))