question: Pan Am Railways has a subsidiary in which former US Class I railroad in Maine?
answer: Maine Central Railroad Company
context: Title: Clobetasol propionate
  Passage: Clobetasol propionate is a corticosteroid of the glucocorticoid class used to treat various skin disorders including eczema and psoriasis.  It is also highly effective for contact dermatitis caused by exposure to poison ivy/oak.  Clobetasol belongs to US Class I (Europe: class IV) of the corticosteroids, making it one of the most potent available.  It comes in shampoo, mousse, ointment and emollient cream presentations.  It has very high potency and typically should not be used with occlusive dressings, or for extended continuous use (beyond two weeks).  It is also used to treat several autoimmune diseases including alopecia areata, vitiligo, lichen sclerosus, and lichen planus.
  Title: St. Louis Southwestern Railway
  Passage: The St. Louis Southwestern Railway (reporting mark SSW) , known by its nickname of "The Cotton Belt Route" or simply Cotton Belt, is a former US Class I railroad which operated between St. Louis, Missouri, and various points in the states of Arkansas and Texas from 1891 to 1992.
  Title: Collective redress
  Passage: Collective redress is a legal term used within the European Union to define the legal instrument of group proceedings as there is absolutely no regulation at the moment.  At the present the European Commission is working on a study to introduce European class action, similar to the US class action.
  Title: Seaboard System Railroad
  Passage: The Seaboard System Railroad, Inc. was a short-lived former US Class I railroad that was created after the consolidation of the Family Lines System railroads (notably the Louisville & Nashville, Seaboard Coast Line, and Clinchfield) on December 29, 1982.  Under the Family Lines era, the railroads shared common ownership but used different names when conducting business.  On July 1, 1986, the Seaboard System renamed itself as CSX Transportation and absorbed the Chesapeake & Ohio Railway on August 31, 1987 which ended the CSX Corporation's shared ownership of the Seaboard System and Chessie System railroads.
  Title: Pan Am Railways
  Passage: Pan Am Railways, Inc. (PAR), formerly known as Guilford Rail System (GRS) before March 2006, is an American holding company that owns and operates Class II regional railroads covering northern New England from Mattawamkeag, Maine, to Rotterdam Junction, New York.  The primary subsidiaries of Pan Am Railways are Boston and Maine Corporation (reporting mark BM) , Maine Central Railroad Company (reporting mark MEC) , Portland Terminal Company (reporting mark PTM) , and Springfield Terminal Railway Company (reporting mark ST) ; BM and MEC are operated under lease by ST.
  Title: Maine Central Railroad Company
  Passage: The Maine Central Railroad Company (reporting mark MEC) was a former U. S. Class I railroad in central and southern Maine.  It was chartered in 1856 and began operations in 1862.  By 1884, Maine Central was the longest railroad in New England.  Maine Central had expanded to 1,358 mi when the United States Railroad Administration assumed control in 1917.  The main line extended from South Portland, Maine, east to the Canada–United States border with New Brunswick, and a Mountain Division extended west from Portland to Vermont and north into Quebec.  The main line was double track from South Portland to Royal Junction, where it split into a "lower road" through Brunswick and Augusta and a "back road" through Lewiston which converged at Waterville into single track to Bangor and points east.  Branch lines served the industrial center of Rumford, a resort hotel on Moosehead Lake, and coastal communities from Bath to Eastport.
citations: Maine Central Railroad Company Pan Am Railways