A boy in a green t-shirt is riding on a Segway
A man racing on his scooter.
Riding does not imply racing.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_segway(x3) & Actor(e1,x1) & v_ride(e1) & in(x1,x2) & n_t-shirt(x2) & a_green(s1) & Theme(s1,x2) & n_boy(x1))
exists x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_scooter(x3) & of(x3,x1) & n_male(x1) & n_racing(x1) & of(x1,x2) & n_man(x2))