28345
The rats were administered 0 . 5 ml water containing NaF ( 100 mg / l ) and EGb ( 120 mg / kg ) per day via gavage .
 Chemical: NaF
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: NaF