This skater is jumping over a hydrant.
The rollerbladers skate down the road.
Jumping over a hydrant does not suggest skating down the road. A skater doesn't necessarily indicate a rollerblader.
exists e1 s1 x1 x2.(n_skater(x1) & a_over(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_hydrant(x2))
exists e1 x1 x2.(n_road(x2) & n_rollerblader(x1) & down(e1,x2) & Actor(e1,x1) & v_skate(e1))