Task: Sentence Expansion
Input (English): Cocker Spaniel is the name for two dog breeds of the Spaniel type : The English Cocker Spaniel and the American Cocker Spaniel .
Output (English): Cocker Spaniels are dogs belonging to two breeds of the spaniel dog type : the American Cocker Spaniel and the English Cocker Spaniel , both of which are commonly called simply ' Cocker Spaniel in their countries of origin .