Only one, but it takes nine years.
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By holding the bulb up to the socket and waiting for the world to revolve around them.
Nothing, you can't cross a vector by a scalar. EDIT: changed multiply to cross.
None. Once the bulb goes out, they replace the house.
She hasnt even been a women for a year yet.
1969
A: Only one but it may take him/her more than five years to do it.