A woman sitting in a car next to a male driver is waving her hand.
The woman is in the passenger seat.
A woman sitting in a car next to the driver is a passenger, and her seat is a passenger seat.
exists e1 e2 x1 x2 x3 x4 x5 x6.(Theme(e2,x6) & Actor(e2,x1) & v_wave(e2) & n_hand(x6) & of(x6,x1) & n_female(x1) & to(e1,x4) & n_driver(x4) & of(x4,x5) & n_male(x5) & r_next(e1) & in(e1,x3) & n_car(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_woman(x1))
exists p1 x1 x2 x3.(n_seat(x2) & of(x2,x3) & n_passenger(x3) & n_woman(x1) & in(x1,x2))