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On the other hand , the phenyl moiety of phenol was found to lay in the hydrophobic part of the CA active site , where CO ( 2 ) , the physiologic substrate of the CAs , binds in the precatalytic complex , explaining thus the behavior of phenol as a unique CO ( 2 ) competitive inhibitor .
 Chemical: phenyl; Chemical: phenol; Chemical: CO ( 2 ); Chemical: phenol; Chemical: CO ( 2 )
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: phenyl; Chemical: phenol; Chemical: CO ( 2 ); Chemical: phenol; Chemical: CO ( 2 )