No one knows. Republicans automatically disbelieve him, and no one can ever trust a stinking liberal anyway.
or
Seven. One to install the new bulb and six to figure out what to do with the old one for the next 10,000 years.
or
Only one, but it may take upwards of five years for him to get it done.
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Just one, provided there is a programmer around to explain how to do it.
or