376087
During World War II , Rothstein was invited to join the British Army as a musician , playing for the troops all over the Middle and Far East .
 Rothstein, British Army, Middle, Far East
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rothstein, British Army, Middle, Far East