289108
In London , while he was on a concert tour , he married Argia Armanda Giustina Mattioni , a ballerina from Trieste , Italy .
 Trieste, Italy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Trieste, Italy