Some children in black robes and black and red hats.
Children participating in religious ceremony.
Just because the attire is black robes and black and red hats doesn't mean it is a religious ceremony.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & n_hat(x4) & a_red(s3) & Theme(s3,x4) & a_black(s2) & Theme(s2,x4) & n_robe(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_black(s1) & Theme(s1,x2) & n_child(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_ceremony(x3) & a_religious(s1) & Theme(s1,x3) & Actor(e1,x2) & v_participate(e1) & (x1 = x2) & n_child(x1))