A young boy tries to skateboard on the snow covered sidewalk.
A young boy is trying to skateboard on the sand.
The young boy is either trying to skate on a snow covered sidewalk or on sand.
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 x1 x2.(n_sand(x2) & 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))