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Weekly Challenge
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A solution to last week's challenge can be found here. 
Many businesses require a fleet of vehicles to conduct their business. Eventually, all of those vehicles need to be refueled so many of these companies choose to issue credit cards that are assigned to a particular vehicle in the fleet. While this is convenient, it can result in unscrupulous behavior...
For this week's challenge, use the provided datasets to create a workflow that flags potentially illegitimate transactions for review.
