These children are playing on a trampoline outdoors.
The children are jumping up and down.
Usually, a trampoline is used for jumping.
exists e1 x1 x2 x3.(n_child(x1) & on(e1,x2) & n_outdoors(x2) & of(x2,x3) & n_trampoline(x3) & Actor(e1,x1) & v_play(e1))
exists e2 e1 s1 s2 x1.(n_child(x1) & a_down(s2) & Manner(e2,s2) & Actor(e2,x1) & v_jump(e2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_jump(e1))