161607
He had a private practice in York 1760 , and became register of probates for York County in 1766 , and a justice of the peace for the Province of Massachusetts Bay in 1767 .
 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