2765
The animals were divided in to four groups , namely saline group ( n = 7 ) , saline + AT group ( n = 7 ) , BA group ( n = 7 ) , and BA + AT group ( n = 7 ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None