Chief Petty Officer Simon Johnson says it's often very simple.

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That is a very simple model, but it works often enough to warrant a careful study by anyone who is interested in trading.

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The very few that exist are simple structures, often without water or even electricity, built by villages that have no means or access to put in the equipment or provide the supplies for a proper clinic.

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There is a very simple solution to this problem of not repeating your message often enough during telephone interviews.

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