26923
Intact rats , with regular estrous cycles , received a subcutaneous ( s . c . ) injection of either vehicle or ICI at 08 : 00h on the day of proestrus or at 00 : 00h on the day of estrus and sacrificed at 13 : 00h of metaestrus .
 Chemical: ICI
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: ICI