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Thus , salicylate coordinated in the G106A variant with the catalytically active Fe ( II ) ion in an unusual and unproductive manner because of the inability of salicylate to displace a hydrogen bond that was formed between Trp104 and Asp174 in the G106A variant .
 Chemical: salicylate; Chemical: Fe ( II ); Chemical: salicylate; Chemical: hydrogen; Chemical: Trp104; Chemical: Asp174
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: salicylate; Chemical: Fe ( II ); Chemical: salicylate; Chemical: hydrogen; Chemical: Trp104; Chemical: Asp174