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CNN has learned that the crew of the `` USS Cole '' was not briefed on the seriousness of the threat in Yemen , nor warned to be on guard for possible terrorist attack the day the warship was bombed .
 CNN, the `` USS Cole '', Yemen, the day
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 CNN, the `` USS Cole '', Yemen, the day