210770
In 1754 , when George Washington became the sole owner of Mount Vernon , he began acquiring additional tracts until the plantation grew in size from the original 2,126 acres to more than 8,000 acres .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None