A boy with a black shirt and white shorts on a bike is turning to look behind himself.
The boy is racing on his bike.
Turning to look does not imply racing.
exists e1 p1 s1 s2 x1 x2 x3 x4 x5.(Topic(e1,p1) & Actor(e1,x1) & v_turn(e1) & exists e2.(behind(e2,x1) & Actor(e2,x1) & v_look(e2)) & n_male(x1) & with(x1,x2) & subset_of(x4,x2) & on(x4,x5) & n_bike(x5) & n_shorts(x4) & a_white(s2) & Theme(s2,x4) & subset_of(x3,x2) & n_shirt(x3) & a_black(s1) & Theme(s1,x3) & n_boy(x1))
exists e1 x1 x2.(n_bike(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & on(e1,x2) & Actor(e1,x1) & v_race(e1))