Question: The head office of Stagecoach Merseyside & South Lancashire was formed following a merger containing the regional bus operator based in which Northwest England town?
Sentence (from "Stagecoach Merseyside &amp; South Lancashire"): The head office of Stagecoach Merseyside & South Lancashire is in Liverpool and was formed in 2011 following the merger of Stagecoach Merseyside and Ribble Motor Services which was the Chorley and Preston operations of Stagecoach North West.
Relevant evidence: Yes