A man riding a three wheeled vehicle topples over.
There is a man in a vehicle
A three wheeled vehicle is a type of vehicle.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & a_over(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_topple(x3) & of(x3,x4) & n_vehicle(x4) & a_wheeled(s1) & Theme(s1,x3) & card_eq_3(x3) & (x1 = x2) & n_man(x1))
exists p1 x1 x2 x3.((x1 = x2) & in(x2,x3) & n_vehicle(x3) & n_man(x2))