A proton and a neutron were taking a walk down the road.
The proton said, "Wait a minute, I think I dropped an electron. Can you help me find it."
The neutron said, "Are you sure?"
The proton replied "Of course, I am positive."
The proton said, "Wait a minute, I think I dropped an electron. Can you help me find it."
The neutron said, "Are you sure?"
The proton replied "Of course, I am positive."
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