4320
The effects of NIK - 247 on cholinesterase , scopolamine - induced amnesia and spontaneous movement were examined and compared with those of the well - known cholinesterase inhibitors tacrine and E - 2020 .
 Chemical: NIK - 247; Chemical: scopolamine; Disease: amnesia; Chemical: tacrine; Chemical: E - 2020
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: NIK - 247; Chemical: scopolamine; Disease: amnesia; Chemical: tacrine; Chemical: E - 2020