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External Data Source

Source

Regular Expression
^([A-Z]{1,}[a-z]{1,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,}[A-Z]{0,}[a-z]{0,})$