Captcha identify

[Peter Pearson]

On Wed, 13 Aug 2014 14:16:02 -0600, Ian Kelly <ian.g.kelly at gmail.com> wrote:
>
> . . . and as computers get more powerful the intersection
> of {problems machines can't solve} and {problems humans can reliably
> solve} grows ever smaller.

"Which of the following eight sentences are sarcastic in tone?"

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