Two people in black vests are standing in front of children in white vests with an American flag between them.
Two people are in clean black vests.
Just because two people are in clean black vests doesn't mean they are standing in front of children in white vests
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(with(e1,x6) & between(x6,x1) & n_thing(x1) & n_flag(x6) & a_american(s3) & Theme(s3,x6) & in(e1,x3) & of(x3,x4) & in(x4,x5) & n_vest(x5) & a_white(s2) & Theme(s2,x5) & n_child(x4) & n_front(x3) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_vest(x2) & a_black(s1) & Theme(s1,x2) & n_people(x1) & card_eq_2(x1))
exists p1 x1.(exists s1 s2 x2.(in(x1,x2) & n_vest(x2) & a_black(s2) & Theme(s2,x2) & a_clean(s1) & Theme(s1,x2)) & n_people(x1) & card_eq_2(x1))