Two girls perform a chinese dance.
There are girls dancing.
The girls perform by dancing.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_dance(x2) & of(x2,x3) & n_chinese(x3) & n_girl(x1) & card_eq_2(x1))
exists p1 x1 e1 x2 x3.((x1 = x2) & Actor(e1,x3) & v_dance(e1) & (x2 = x3) & n_girl(x2))