1807
In the present study , we investigated whether maltolyl p - coumarate could improve cognitive decline in scopolamine - injected rats and in amyloid beta peptide ( 1 - 42 ) - infused rats .
 Chemical: maltolyl p - coumarate; Disease: cognitive decline; Chemical: scopolamine; Chemical: amyloid beta peptide ( 1 - 42 )
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: maltolyl p - coumarate, cognitive decline, scopolamine, amyloid beta peptide ( 1 - 42 ) 
Answer:
 Chemical: maltolyl p - coumarate; Disease: cognitive decline; Chemical: scopolamine; Chemical: amyloid beta peptide ( 1 - 42 )