18040
These findings shed new light on how H ( 2 ) S is understood to interact with nitroprusside .
 Chemical: H ( 2 ) S; Chemical: nitroprusside
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: H ( 2 ) S; Chemical: nitroprusside