76858
Returning to the United Kingdom , he joined the scientific staff of the Social Science Research Council , where he was latterly Principal Scientific Officer .
 United Kingdom, Social Science Research Council
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:
 United Kingdom, Social Science Research Council