155602
On April 13 , 1993 , the Serbs told the UNHCR representatives that they would attack the town within two days unless the Bosniaks surrendered and agreed to be evacuated .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None