180606
Wonsam for winter were made with dan ( 緞 ) , a thick silk with a glossy surface formed with a satin weave , and wonsam for summer were made with sa ( 紗 ) , a loosely woven silk .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None