Task: Text Categorization
Input (English): Text:  The Douro (Portuguese: Douro [ˈdowɾu ˈdoɾu]; Spanish: Duero [ˈdweɾo]; Latin: Durius) is one of the major rivers of the Iberian Peninsula flowing from its source near Duruelo de la Sierra in Soria Province across northern-central Spain and Portugal to its outlet at Porto.
Output (English): 8