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I.e. What are "CLIENT_ID", "SECTOR", and "RELATIONSHIP_MANAGER"?
field names, column names, column headers. any of those would make sense to me as a dev
relational database terminology or sql terminology is probably what you're after
there'll be slightly different terms depending on what language it's being developed in, but everyone (dev) will/should know some basic sql terminology and how that applies to their language of choice
if it's like
then I'd ask for the favourite_restaurant value for that customer.