8634
Chang blamed breezy conditions for some of the erratic play in his match with Oncins , who had beaten him in the round of 32 at the 1992 Barcelona Olympics .
 Oncins, Chang, Olympics, Barcelona
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Oncins, Chang, Olympics, Barcelona