A woman skates while others run on a path.
A woman skates on a skateboard while others run on a path.
Skates does not necessarily mean it is on a skateboard.
exists e1 p1 x1.(exists e2 x2 x3.(on(e2,x3) & n_path(x3) & Actor(e2,x2) & v_run(e2) & -(x2 = x1) & n_person(x2)) & n_person(x1) & while(e1,p1) & Actor(e1,x1) & v_skate(e1) & n_woman(x1))
exists e1 p1 x1 x2.(exists e2 x3 x4.(on(e2,x4) & n_path(x4) & Actor(e2,x3) & v_run(e2) & -(x3 = x1) & n_person(x3)) & n_person(x1) & while(e1,p1) & on(e1,x2) & n_skateboard(x2) & Actor(e1,x1) & v_skate(e1) & n_woman(x1))