284141
N.A.S.A. stands for North America/South America and , in addition to the two principals , includes approximately three dozen other artists from both coasts of the U.S. and abroad .
 U.S.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 U.S.