釣瓶

"なぞなぞ爺さん" <Mr-Q@vjp.jp> wrote in message 
news:1123585039.503411.116820@o13g2000cwo.googlegroups.com...
>
> 上がる時は満員だけど下がる時は空っぽなーんだ?
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>
> --
> なぞなぞ爺さん
>