24767
Abstract Context : Sulforaphane ( SFN ) is a natural compound that has been investigated as a chemopreventive agent .
 Chemical: Sulforaphane; Chemical: SFN
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: Sulforaphane; Chemical: SFN