200619
American Short Line and Regional Railroad Association ( ASLRRA ) is an association of North America n short line and regional railroad s. Members include a variety of Class II and Class III railroads .
 Short Line, Regional Railroad, North America
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Short Line, Regional Railroad, North America