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Wistar - Kyoto rats received intracerebroventricular ( I . C . V . ) infusion of artificial cerebrospinal fluid ( aCSF ) while SHRs received I . C . V . infusion of Ang - ( 1 - 7 ) , Mas receptor antagonist A - 779 and aCSF for 4 weeks .
 Chemical: Ang - ( 1 - 7 )
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: Ang - ( 1 - 7 )