Little boy rides around playground on a motorized bike.
A little boy is about to do a trick on his motorbike.
The boy riding around the playground isn't necessarily going to do a trick.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & around(x1,x3) & on(x3,x4) & n_bike(x4) & Theme(e1,x4) & v_motorize(e1) & n_playground(x3) & n_ride(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1))
exists p1 s1 s2 x1 x3.(Topic(s2,p1) & Actor(s2,x1) & a_about(s2) & exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_trick(x2)) & n_motorbike(x3) & of(x3,x1) & n_male(x1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))