7448
After this , further actions were undertaken around Derna and Benghazi , before supporting the 18th Brigade 's attack on Giarabub in March .
 Derna, Benghazi, 18th Brigade, attack, Giarabub
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Derna, Benghazi, 18th Brigade, attack, Giarabub