A young boy tries to skateboard on the snow covered sidewalk.
A young boy is testing how slippery the sidewalk is with his skateboard.
Trying to skateboard on a snowy sidewalk does not imply that the person is testing how slippery the sidewalk is.
exists e3 e1 p1 s1 x1 x2 x3.(n_sidewalk(x2) & Theme(e3,x2) & v_cover(e3) & of(x2,x3) & n_snow(x3) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(on(e2,x2) & Actor(e2,x1) & v_skateboard(e2)) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 s1 s2 x1 x2 x3 x4.(n_skateboard(x4) & of(x4,x2) & n_male(x2) & n_sidewalk(x2) & for(e1,s2) & r_how(s2) & Theme(s2,x1) & a_slippery(s2) & Theme(e1,x2) & Actor(e1,x1) & v_test(e1) & with(x3,x4) & (x2 = x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))