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This group lasted until 1933 and included such notable members as Wilhelm Ostwald , Georg von Arco ( 1869 - 1940 ) , Helene Stöcker and Walter Arthur Berendsohn .
 person: Wilhelm Ostwald; person: Georg von Arco; person: Helene Stöcker; person: Walter Arthur Berendsohn
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Wilhelm Ostwald; person: Georg von Arco; person: Helene Stöcker; person: Walter Arthur Berendsohn