Problem
Write a SQL query to find the top three medical claim categories by spend for each region, ranking them using a window function.
Practicing as: Business Analyst interview at Oscar InsuranceHi, I'll play your Oscar Insurance interviewer for the Business Analyst role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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