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" The accurate automatic machine " led immediately to " mechanical automata " beginning in the 13th century and finally to " computational machines " - the difference engine and analytical engines of Charles Babbage and Countess Ada Lovelace , mid-19 th century .
 person: Charles Babbage; person: Ada Lovelace
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: Charles Babbage, Ada Lovelace 
Answer:
 person: Charles Babbage; person: Ada Lovelace