81610
Together with Patrick van Balkom , Timothy Beck and Caimin Douglas he won a bronze medal in 4 × 100 metres relay at the 2003 World Championships in Athletics .
 Patrick van Balkom, Timothy Beck, Caimin Douglas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Patrick van Balkom, Timothy Beck, Caimin Douglas