13009
Based on microarray analysis followed by comparative metabolomics of overexpression / knockout mutants , we identified a tryptophan - derived iron ( III ) - complex , hexadehydro - astechrome ( HAS ) , as the major product of the cryptic has nonribosomal peptide synthetase ( NRPS ) gene cluster in the human pathogen Aspergillus fumigatus .
 Chemical: tryptophan; Chemical: iron ( III ); Chemical: hexadehydro - astechrome; Chemical: HAS
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: tryptophan; Chemical: iron ( III ); Chemical: hexadehydro - astechrome; Chemical: HAS