53359
A rudimentary form of jet power dates back to the aeolipile , a device described by Hero of Alexandria in 1st - century Roman Egypt. This device directed steam power through two nozzles to cause a sphere to spin rapidly on its axis .
 person: Hero of Alexandria
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: Hero of Alexandria 
Answer:
 person: Hero of Alexandria