Two girls showing something to each other.
Two girls are showing each other something.
Showing each other something is the same as showing something.
exists e1 x1 x2 x3.(a_topic(x1) & all x4.(n_other(x4) -> to(e1,x4)) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & n_thing(x3) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists x1 x3.(n_something(x3) & all x2.((-(x2 = x3) & n_something(x2)) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_show(e1))) & n_girl(x1) & card_eq_2(x1))