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When the invention became public , as revised by Henri Herz , the double escapement action gradually became standard in grand pianos , and is still incorporated into all grand pianos currently produced .
 person: Henri Herz
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: Henri Herz 
Answer:
 person: Henri Herz