As many as you want; they're all virtual anyway.
or
It's going to be a dark 4 years, isn't it?
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First they have to agree on which is better; the analog bulb or a digital bulb.
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Because it would fall over if it lifted the other one.
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He made an illegal ewe turn.
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I've got my ion you.
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A swordfish
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Clerk: "Yes, sir. What size does your alligator wear?"
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Stop bugging me!
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Only one, but it takes six visits.
or