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As the selenocysteine ( SeCys ) amino acid , selenium is integrated in several Se - containing proteins ( selenoproteins ) , many of which are fundamental for cell homeostasis .
 Chemical: selenocysteine; Chemical: SeCys; Chemical: amino acid; Chemical: selenium; Chemical: Se
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: selenocysteine; Chemical: SeCys; Chemical: amino acid; Chemical: selenium; Chemical: Se