19251
In this study , Wistar - Kyoto rats received intracerebroventricular ( I . C . V . ) infusion of artificial cerebrospinal fluid ( aCSF ) while SHRs received I . C . V . infusion of aCSF , Ang - ( 1 - 7 ) , Mas receptor antagonist A - 779 , or angiotensin II type 2 receptor antagonist PD123319 for 4 weeks .
 Chemical: A - 779; Chemical: PD123319
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: A - 779; Chemical: PD123319