Input (grade 13): It encompasses one of the largest metropolitan areas in the United Kingdom and comprises ten metropolitan boroughs: Bolton, Bury, Oldham, Rochdale, Stockport, Tameside, Trafford, Wigan, and the cities of Manchester and Salford.
Output (grade 10): Its cities are Manchester and Salford and its large towns are Oldham, Bury (city), Rochdale, Ashton-Under-Lyne, Stockport, Wigan and Bolton.