3733
The coins were issued for commemorative purposes and were not intended for circulation , although they remain legal tender and must be accepted at Post Offices .
 organization: Post Offices
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:
 organization: Post Offices