police questioning the driver of a black wagon at nighttime.
The police is questioning an asian driver.
An asian driver can drive any color of vehicle. Any nationality can drive wagons.
exists e1 s1 x1 x2 x3 x4.(n_driver(x2) & at(e1,x4) & n_nighttime(x4) & Theme(e1,x2) & Actor(e1,x1) & v_question(e1) & of(x2,x3) & n_wagon(x3) & a_black(s1) & Theme(s1,x3) & n_police(x1))
exists e1 s1 x1 x2.(n_police(x1) & Theme(e1,x2) & Actor(e1,x1) & v_question(e1) & n_driver(x2) & a_asian(s1) & Theme(s1,x2))