9046
But they have difficulty remembering what happened there , perhaps because of drugs , and are unsure whether they were filmed for pornography , Rudolf Gajdos , head of the Slovak office of Interpol , told Reuters .
 Reuters, Slovak, Rudolf Gajdos, Interpol
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:
 Reuters, Slovak, Rudolf Gajdos, Interpol