9757
Leopold continued to care for his grandson , taking delight in his progress ( toilet training , speech , and so on ) , and commencing with the very beginnings of musical training .
 person: Leopold
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Leopold