Two woman are doing karate.
Two women are doing karate while their coach gives advice.
There is nothing to indicate that there is a coach to give advice.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_karate(x2) & n_woman(x1) & card_eq_2(x1))
exists e1 p1 x1 x2 x3.(exists e2 x4.(Theme(e2,x4) & Actor(e2,x3) & v_give(e2) & n_advice(x4)) & n_coach(x3) & of(x3,x1) & n_thing(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_karate(x2) & n_woman(x1) & card_eq_2(x1))