120260
The hypothetical events included civil unrest in OPEC country Nigeria , and coordinated terrorist attacks on ports in Saudi Arabia and Alaska .
 OPEC, Nigeria, Saudi Arabia, Alaska
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 OPEC, Nigeria, Saudi Arabia, Alaska