4898
Our experiments were designed to test the hypothesis that orexin - A ( OXA ) is involved in the mechanism of stress - induced hypertension ( SIH ) by adjusting NOS / NO system in the RVLM .
 Chemical: NO
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: NO