1429
The effect of ritanserin ( 5 - HT2 antagonist ) on scopolamine ( muscarinic cholinergic antagonist ) - induced amnesia in Morris water maze ( MWM ) was investigated .
 Chemical: ritanserin; Chemical: scopolamine; Disease: amnesia
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: ritanserin; Chemical: scopolamine; Disease: amnesia