24057
In ACF assay , a reduction in the number of aberrant crypts ( ACs ) and ACF ( 1 - 3 AC ) were observed in the groups fed with 5 . 0 % AP ( 37 % AC and 47 % ACF inhibition , p = 0 . 036 ) and 0 . 2 % NAC ( 39 % AC and 41 % ACF inhibition , p = 0 . 042 ) .
 Chemical: NAC
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: NAC