359173
As required by the Land Act of 1851 , a claim for Rancho Castac was filed with the U.S. Public Land Commission in 1853 , and the grant was patented to Covarrubias in 1866 .
 Land, Public Land Commission
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Land, Public Land Commission