325405
History " Baked beans were among the first canned " convenience foods " to emerge in the U.S. , dating back to the civil war .
 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