170476
In 1688 King Petracha of Ayutthaya created the title of Front Palace , which by the Rattanakosin period had become the main title granted to the heir presumptive to the throne .
 person: Petracha
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: Petracha 
Answer:
 person: Petracha