An audacious motorcyclist who is zooming through a racetrack.
There is a motorcylist that is riding fast.
zooming means riding fast. Both the sentences give same meaning. It is rephrasing of the sentences.
exists e1 s1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_racetrack(x3) & Actor(e1,x2) & v_zoom(e1) & (x1 = x2) & n_motorcyclist(x1) & a_audacious(s1) & Theme(s1,x1))
exists p1 x1 e1 s1 x2 x3.((x1 = x2) & a_fast(s1) & Manner(e1,s1) & Actor(e1,x3) & v_ride(e1) & (x2 = x3) & n_motorcylist(x2))