194468
The original house was built in 1720 by Nathaniel Thayer and was subsequently expanded in the 1760s and again in the 19th century .
 person: Thayer
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: Thayer 
Answer:
 person: Thayer