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External Data Source

Source

Regular Expression
(http://)?(www\.)?(youtube|yimg|youtu)\.([A-Za-z]{2,4}|[A-Za-z]{2}\.[A-Za-z]{2})/(watch\?v=)?[A-Za-z0-9\-_]{6,12}(&[A-Za-z0-9\-_]{1,}=[A-Za-z0-9\-_]{1,})*