I am really not sure what this group is doing.
This group is doing something confusing.
If the person is not sure they are confused on the group is doing.
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 e1 s1 x1 x2 x3.(n_group(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & Theme(s1,x3) & a_confusing(s1) & (x2 = x3) & n_thing(x2))