121135
The company primarily operated during the 1980s and 1990s throughout the Midwestern United States , and is considered among the first national chains to implement the DIY strategy .
 location: Midwestern United States
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Midwestern United States 
Answer:
 location: Midwestern United States