A person on a bike flies through the air with the sun flaring through the bike frame.
The bike is a motorcycle.
Just because it is a bike does not necessarily mean it is a motorcycle.
exists e2 e1 x1 x2 x3 x4 x5 x6.(n_sun(x4) & n_air(x3) & with(e1,x4) & through(e2,x6) & n_frame(x6) & of(x6,x2) & n_bike(x2) & n_bike(x2) & Actor(e2,x5) & v_flare(e2) & (x4 = x5) & through(e1,x3) & Actor(e1,x1) & v_fly(e1) & on(x1,x2) & n_person(x1))
exists p1 x1.(n_bike(x1) & exists x2.((x1 = x2) & n_motorcycle(x2)))