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Huh, I didn't see that coming.
Good catch; you're sharp.
I'm hooked; go on.
That's an interesting way to look at it.
I was just wondering about that too.
True, now that you mention it.
Ah, so that's what it was; got it.
I'd love to dig into that more.
Honestly, I hadn't thought that far.
Wait, really? I can't believe it.
That reminds me of something.
Yeah, and then what?