A boy bounces on a trampoline.
A male is jumping.
bounces and jumping word means the same.
exists e1 x1 x2.(on(e1,x2) & n_trampoline(x2) & Actor(e1,x1) & v_bounce(e1) & n_boy(x1))
exists e1 x1.(Actor(e1,x1) & v_jump(e1) & n_male(x1))