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The lystabactins are composed of serine ( Ser ) , asparagine ( Asn ) , two formylated / hydroxylated ornithines ( FOHOrn ) , dihydroxy benzoic acid ( Dhb ) , and a very unusual nonproteinogenic amino acid , 4 , 8 - diamino - 3 - hydroxyoctanoic acid ( LySta ) .
 lystabactins, serine, Ser, asparagine, Asn, formylated / hydroxylated ornithines, FOHOrn, dihydroxy benzoic acid, Dhb, nonproteinogenic amino acid, 4 , 8 - diamino - 3 - hydroxyoctanoic acid, LySta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 lystabactins, serine, Ser, asparagine, Asn, formylated / hydroxylated ornithines, FOHOrn, dihydroxy benzoic acid, Dhb, nonproteinogenic amino acid, 4 , 8 - diamino - 3 - hydroxyoctanoic acid, LySta