14373
In 1786 – 87 , Shays ' Rebellion , an uprising of dissidents in western Massachusetts against the state court system , threatened the stability of state government .
 location: Massachusetts
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: Massachusetts 
Answer:
 location: Massachusetts