I am really not sure what this group is doing.
The group is all girls.
Not all groups are all girls.
exists x1 x3.(n_group(x3) & n_person(x1) & -exists e1 s1 s2 x2.(n_thing(x2) & a_really(s2) & Manner(s1,s2) & Theme(s1,x2) & Actor(s1,x1) & a_sure(s1) & Theme(e1,x2) & Actor(e1,x3) & v_do(e1)))
exists p1 x1.(n_group(x1) & all x2.(n_girl(x2) -> (x1 = x2)))