47297
The existence ( or potential existence ) of such large numbers of molecular species is a combinatorial phenomenon : It arises from a relatively small set of features or modifications ( such as post-translational modification or complex formation ) that combine to dictate the state of the entire molecule or complex , in the same way that the existence of just a few choices in a coffee shop ( small , medium or large , with or without milk , decaf or not , extra shot of espresso ) quickly leads to a large number of possible beverages ( 24 in this case ; each additional binary choice will double that number ) .
 decaf, espresso
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:
 decaf, espresso