9380
Furthermore , we show for the first time that in the presence of iron and L - cysteine , an [ Fe ( 4 ) S ( 4 ) ] cluster is formed within the quaternary complex that can be transferred to mammalian aconitase ( mACO2 ) to generate an active enzyme .
 Chemical: iron; Chemical: L - cysteine; Chemical: Fe ( 4 ) S ( 4 )
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: iron; Chemical: L - cysteine; Chemical: Fe ( 4 ) S ( 4 )