55998
Bosnian history from then until the early 14th century was marked by a power struggle between the Šubić and Kotromanić families .
 Šubić, Kotromanić
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Šubić, Kotromanić