271546
Al-Qaeda believed that the United States Marine Corps would be staying at the Gold Mohur Hotel in Aden , Yemen while on their way to Somalia to participate in Operation Restore Hope .
 Al-Qaeda, United States Marine Corps, Aden, Yemen, Somalia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Al-Qaeda, United States Marine Corps, Aden, Yemen, Somalia