original question: Which roads cross the major cities [Southwest Middlesex, Ontario]?
answer: highway 77
answer type: Road.
auxiliary information: Southwest Middlesex is a municipality in Middlesex County, Ontario, Canada. The restructured municipality of Southwest Middlesex was incorporated on January 1, 2001. This amalgamation joined the Village of Glencoe and the Village of Wardsville with the Townships of Ekfrid and Mosa. Southwest Middlesex had a population of 5,860 in the Canada 2011 Census. Southwest Middlesex is located in the southwest corner of Middlesex County, about halfway between London and Chatham.
Name the roads which cross the major cities of [Southwest Middlesex, Ontario].