4341
In Washington President Bush said nothing can change the suffering and loss caused by the December 1988 attack on Pan Am Flight 103 that killed 270 people , but he welcomed Wednesday 's guilty verdict for one of the two Libyan agents accused in the bombing .
 Washington, Bush, December 1988, Pan Am Flight 103, 270, Wednesday, one, two, Libyan
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:
 Washington, Bush, December 1988, Pan Am Flight 103, 270, Wednesday, one, two, Libyan