21763
As many of these compounds have been reported to occur in roasted coffee beans and / or brews , it can be suggested that the degradation of coffee arabinogalactan side chains can contribute to their formation upon roasting .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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