a young boy wearing an orange helmet riding a scooter
The boy is riding his scooter on the sidewalk
The boy riding his scooter is not necessarily on the sidewalk
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & Theme(e1,x6) & Actor(e1,x5) & v_ride(e1) & n_scooter(x6) & (x3 = x5) & n_helmet(x3) & of(x3,x4) & n_orange(x4) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_sidewalk(x3) & n_scooter(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1))