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Analysis of fresh berries showed that ellagic acid derivatives and ellagitannins were mainly present in the seeds , while proanthocyanidins were present both in the seeds and skin .
 Chemical: ellagic acid; Chemical: proanthocyanidins
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ellagic acid; Chemical: proanthocyanidins