87281
Examples of commodities that have been used as media of exchange include gold , silver , copper , salt , peppercorns , tea , decorated belts , shells , alcohol , cigarettes , silk , candy , nails , cocoa beans , cowries and barley .
 peppercorns
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:
 peppercorns