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External Data Source

Source

Regular Expression
^[0-3]{1}[0-9]{1}[ ]{1}(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec){1}[ ]{1}[0-9]{2}$