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Although experimental evidences suggest that the intestinal microbiota is able to incorporate and degrade some of the available amino acids , it appears that the microbiota is also able to synthesize amino acids raising the view that amino acid exchange between the microbiota and host can proceed in both directions .
 Chemical: amino acids; Chemical: amino acids; Chemical: amino acid
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: amino acids; Chemical: amino acids; Chemical: amino acid