92300
He won silver medals in the 400 " m individual medley and the 4 × 100 " m freestyle together with Mark Veens , Johan Kenkhuis and Pieter van den Hoogenband , in the 200 " m individual medley he won a bronze medal .
 Mark Veens, Johan Kenkhuis, Pieter van den Hoogenband
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mark Veens, Johan Kenkhuis, Pieter van den Hoogenband