39476
For his literary activity , he was elected a corresponding member of Astra in 1912 , and was promoted to full membership in 1925 .
 Astra
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:
 Astra