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Developmental policy included such legislation as the Land Act of 1820 , the Homestead Act , which granted townships , and the Morrill Act of 1862 , which initiated the land-grant college system , one in a long series of acts that provided public support for agricultural research and education .
 None
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:  
Answer:
 None