A Group of people wearing white headbands with two white fluffy balls on each one.
The white headbands are part of a costume.
Not all headbands are part of a costume.
exists s1 s2 s3 s4 x1 x2 x3 x4.(a_topic(s1) & of(s1,x1) & all x5.((n_thing(x5) & card_eq_1(x5)) -> exists e1.(Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & with(x3,x4) & on(x4,x5))) & n_ball(x4) & a_fluffy(s4) & Theme(s4,x4) & a_white(s3) & Theme(s3,x4) & card_eq_2(x4) & n_headband(x3) & a_white(s2) & Theme(s2,x3) & (x1 = x2) & n_people(x1) & ne_org_group(s1))
exists p1 s1 x1.(n_headband(x1) & a_white(s1) & Theme(s1,x1) & exists x2 x3.((x1 = x2) & of(x2,x3) & n_costume(x3) & n_part(x2)))