129793
It was the 15th edition of the St. Petersburg Open , and was part of the ATP World Tour 250 Series of the 2009 ATP World Tour .
 location: Petersburg
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: Petersburg 
Answer:
 location: Petersburg