LOCATION@1 Overground -LRB- LO -RRB- is a commuter rail service in LOCATION@1 , LOCATION@2 , the brand applied by ORGANIZATION@1 -LRB- TfL -RRB- to the services on four railway lines : the ORGANIZATION@2 DC Line , the North London Line , the West London Line and the Gospel Oak to Barking Line .

LOCATION@1 Overground -LRB- LO -RRB- is a commuter rail service in LOCATION@1 , LOCATION@2 .
