A dirt biker in red speeds on clay road while being videotaped by a man in black.
A man tapes someone riding a bike.
The dirt biker in red speeds on clay road meaning he is going someone riding a bike fast.
(x)
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x5) & Actor(e1,x4) & v_ride(e1) & n_bike(x5) & (x1 = x4) & Time(x1,x3) & n_someone(x3) & n_tape(x1) & of(x1,x2) & n_man(x2))