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In BDL rats , OP treatment reduced arterial ammonia concentration and increased that of glutamine 30 min after the treatment but not after 15 h .
 Chemical: ammonia; Chemical: glutamine
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: ammonia; Chemical: glutamine