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Marine Lance Corporal Patrick Nixon was one of 17 killed in an ambush near Nasiriyah on March 23 .
 Nasiriyah, Marine, Marine Lance Corporal, Marine Lance Corporal Patrick Nixon, one of 17 killed in an ambush near Nasiriyah on March 23, 17 killed in an ambush near Nasiriyah on March 23
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Nasiriyah, Marine, Marine Lance Corporal, Marine Lance Corporal Patrick Nixon, one of 17 killed in an ambush near Nasiriyah on March 23, 17 killed in an ambush near Nasiriyah on March 23