13561
Oil product inventories held in independent tankage in the Amsterdam-Rotterdam-Antwerp area were at the following levels , with week-ago and year-ago levels , industry sources said .
 Amsterdam-Rotterdam-Antwerp
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:
 Amsterdam-Rotterdam-Antwerp