sentences:  At the same time, the Maine Central Railroad (MEC) leased the E&NA from Vanceboro to Bangor; it would purchase the line in the 1950s.In 1889 the Canadian Pacific Railway (CPR) purchased the NBR and constructed the International Railway of Maine to connect Montreal to the ice free winter port of Saint John, leasing trackage rights over the section owned by the Maine Central between Vanceboro and Mattawamkeag.In 1974, CP Rail purchased this section, completing its ownership of a transcontinental railway from the shores of the Atlantic to the Pacific.