A man dressed in a police uniform on a Segway personal transportation device is in the street.
The man is riding along slowly.
A Segway's travel speed doesn't need to be slowly ridden.
exists e1 p1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_street(x8) & in(x1,x8) & in(e1,x3) & on(x3,x5) & n_device(x5) & of(x5,x7) & n_transportation(x7) & a_personal(s1) & Theme(s1,x5) & of(x5,x6) & n_segway(x6) & n_uniform(x3) & of(x3,x4) & n_police(x4) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1))
exists e1 p1 s1 x1.(n_man(x1) & a_slowly(s1) & Manner(e1,s1) & exists s2.(Theme(s2,x1) & a_along(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_ride(e1))