LOCATION@1 , LOCATION@2 , the LOCATION@3 and LOCATION@4 together form the most populated conurbation in the LOCATION@5 outside LOCATION@6 , with a combined population of around NUMBER@1 million .

LOCATION@1 , LOCATION@2 , the LOCATION@3 and LOCATION@4 together form the largest conurbation in the LOCATION@5 outside LOCATION@6 , with a combined population of around NUMBER@1 million .
