95018
The camp 's total land area consists of 727 dunum s. According to the Palestinian Central Bureau of Statistics ( PCBS ) , al-Shati had a population of 87,158 inhabitants in mid-year 2006 , while the United Nations Relief and Works Agency ( UNRWA ) reports a population of 78,800 registered refugees .
 Palestinian Central Bureau of Statistics, United Nations Relief and Works Agency
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Palestinian Central Bureau of Statistics, United Nations Relief and Works Agency