Little boy rides around playground on a motorized bike.
The little boy is unsupervised.
It can't be inferred that the little boy is unsupervised.
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 s1 s2 x1.(n_boy(x1) & a_little(s1) & Theme(s1,x1) & Theme(s2,x1) & a_unsupervised(s2))