A Group of people wearing white headbands with two white fluffy balls on each one.
None of the people have anything on their heads.
A group is different than none.
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 x1 x2 x4.(n_head(x4) & of(x4,x2) & n_thing(x2) & n_people(x2) & all x3.(n_thing(x3) -> exists e1.(Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & on(x3,x4))) & of(x1,x2) & n_none(x1))