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Hero of Alexandria is credited with many such wind and steam powered machines in the 1st century AD , including the Aeolipile and the vending machine , often these machines were associated with worship , such as animated altars and automated temple doors .
 Hero of Alexandria
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hero of Alexandria