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Between 1927 and 1933 he worked as a bookkeeper , before being appointed General Secretary of the Jewish National Fund in the country , a job he held until 1939 .
 Jewish National Fund
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Jewish National Fund