82823
Around 1832 , Hippolyte Pixii improved the magneto by using a wire wound horseshoe , with the extra coils of conductor generating more current , but it was AC .
 person: Hippolyte Pixii
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Hippolyte Pixii 
Answer:
 person: Hippolyte Pixii