1207
Rats were treated with the NO synthase inhibitor LNNA ( 0 . 5 g / L in drinking water ) for 2 weeks .
 Chemical: NO; Chemical: LNNA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: NO; Chemical: LNNA