43879
In 2003 , he reached the required rate to compete in the 800 m freestyle at the 2003 Pan American Games in Santo Domingo , but the race was excluded from the calendar .
 Santo Domingo
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Santo Domingo