A man in a red and white helmet and race gear is riding a recumbent bicycle.
The man is riding a horse.
He is either riding a horse or bicycle.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(Theme(e1,x6) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x6) & a_recumbent(s3) & Theme(s3,x6) & in(x1,x2) & n_gear(x4) & of(x4,x5) & n_race(x5) & n_helmet(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_white(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2))