Two girls are riding a 4 wheeler.
The two girls are riding horses.
4 wheeler is more of a vehicle not horses.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_wheeler(x2) & n_date(x2) & a_date_day_04(x2) & a_date_day_04(x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_girl(x1) & card_eq_2(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2))