A boy jumps over another boy on a trampoline.
There are two boys on a trampoline.
A boy jumps over another boy is a rewording of ' there are two boys'
exists e1 x1 x2 x3.(over(e1,x2) & on(x2,x3) & n_trampoline(x3) & n_boy(x2) & -(x2 = x1) & n_boy(x1) & n_boy(x1) & Actor(e1,x1) & v_jump(e1))
exists p1 x1 x2 x3.((x1 = x2) & on(x2,x3) & n_trampoline(x3) & n_boy(x2) & card_eq_2(x2))