Three kids on a scooter with three wheels.
A vehicle has an equal number of wheels as riders.
scooter is type of vehicle
exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & with(x2,x3) & n_wheel(x3) & card_eq_3(x3) & n_scooter(x2) & n_kid(x1) & card_eq_3(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & of(x2,x3) & as(x3,x4) & n_rider(x4) & n_wheel(x3) & n_number(x2) & a_equal(s1) & Theme(s1,x2) & n_vehicle(x1))