19779
Substitution at the alpha center of the known human arginase inhibitor 2 - amino - 6 - boronohexanoic acid ( ABH ) is acceptable in the active site pockets of both human arginase I and arginase II .
 Chemical: 2 - amino - 6 - boronohexanoic acid; Chemical: ABH
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: 2 - amino - 6 - boronohexanoic acid; Chemical: ABH