9670
kennedy entered the navy earning hero status for saving his ship mates when his boat pt - 109 was sunk by the japanese .
 the japanese, the navy, kennedy, his, his ship mates, his, his boat, pt - 109
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:
 the japanese, the navy, kennedy, his, his ship mates, his, his boat, pt - 109