63951
On August 16 , 2005 at 1:44 " a.m. EDT he passed the record of 748 days in space held by Sergei Avdeyev .
 Sergei Avdeyev
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sergei Avdeyev