there was a guy who went into a shop to buy a parrot。 there werethreeparrots in the shop。 one was $5，000; another one，$10，000; and the third one，$30，000。
the customer asked the owner，“how e this guy is $5，000? that is soexpensive for this kindof parrot。”
the owner said，“because i have trained himand he can talk。”
so the customer asked him，“how about this guy?
what can he dothat makes him so expensive?” the owner said，“well，apart from talking，he canalso do some amusing actions，like dancing and so on。
that is why he is soexpensive。” then the customer said，“how about the third one? what canhe do thatmakes him so expensive?”
the owner of the shopsaid，“i don?t know。 normally，ihave never heard him talk，nor dance，nor whistle，nor sing，nothing at all! butthe other two call him ?the boss。”
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