12441
However when cognitive impairment was induced in the rats with scopolamine ( 1 mg / kg ) , both PNU - 120596 and PNU - 282987 were able to reverse this memory impairment and restore it back to normal levels .
 Chemical: scopolamine; Chemical: PNU - 120596; Chemical: PNU - 282987
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: scopolamine; Chemical: PNU - 120596; Chemical: PNU - 282987