9657
he says his father ' s night - time handover was dignified , that u . s . forces offered medical support for his father ' s heart condition , that has caused two heart attacks recently .
 u . s, he, his, his father, u . s . forces, his, his father
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:
 u . s, he, his, his father, u . s . forces, his, his father