16001
Administration of the angiotensin IV receptor antagonist , divalinal - Ang IV ( 20 nmol , i . c . v . ) , reduced ( but did not abolish ) novel object recognition ; however , this antagonist completely blocked the procognitive effects of angiotensin IV ( 0 . 1 nmol , i . c . v . ) in this task .
 Chemical: angiotensin IV; Chemical: divalinal - Ang IV; Chemical: angiotensin IV
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: angiotensin IV; Chemical: divalinal - Ang IV; Chemical: angiotensin IV