341756
In addition to growing a significant amount of food , the Derveas family attempts to live off-grid as far as possible and have invested significant amounts of money to experiment with other ways of attaining self-sufficiency .
 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