22779
Abstract 1 . Rodent studies have documented that N ( omega ) - hydroxy - nor - L - arginine ( nor - NOHA ) , an arginase inhibitor , has therapeutic potential in the treatment of cardiovascular and obstructive airway diseases .
 Chemical: N ( omega ) - hydroxy - nor - L - arginine; Chemical: nor - NOHA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: N ( omega ) - hydroxy - nor - L - arginine, nor - NOHA 
Answer:
 Chemical: N ( omega ) - hydroxy - nor - L - arginine; Chemical: nor - NOHA