Two men kayaking in rough waters.
Two sisters ride in an offroad vehicle
Tow men and two sisters are not same.
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_waters(x3) & a_rough(s1) & Theme(s1,x3) & Actor(e1,x2) & v_kayake(e1) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(in(e1,x2) & n_vehicle(x2) & of(x2,x3) & n_offroad(x3) & Actor(e1,x1) & v_ride(e1) & n_sister(x1) & card_eq_2(x1))