16708
However , little is known regarding the Nrf2 - inducing activities of the lower structure - related sulforaphane homologues , such as iberverin , iberin and cheirolin , which exhibit different sulfur oxidation states .
 Chemical: sulforaphane; Chemical: iberverin; Chemical: iberin; Chemical: cheirolin
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: iberverin; Chemical: iberin; Chemical: cheirolin