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There are three categories,
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a different amount of variables in each one.
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Here's category one.
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Letters DFW, BOS, MSP.
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- International airports. - All of them in the U.S.
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These right here, airlines and corresponding plane numbers.
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International airlines.
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So whatever they're transporting
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is going in and out of the country.
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We haven't figured out what these numbers mean yet,
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but we think it has something to do
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with where the shipment ends up.