Task: Sentence Expansion
Input (English): In 1974 , Cumberland , Westmorland and bits of Yorkshire and Lancashire were put into the new county of Cumbria .
Output (English): The county of Cumbria was created in April 1974 through an amalgamation of the administrative counties of Cumberland and Westmorland , to which parts of Lancashire ( the area known as Lancashire North of the Sands ) and the West Riding of Yorkshire were added .