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The effects of exogenous thiocyanate ( SCN ( - ) ) on amino acids composition , content of mineral nutrients and antioxidative systems in plants were investigated .
 Chemical: thiocyanate; Chemical: SCN ( - ); Chemical: amino acids
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: thiocyanate; Chemical: SCN ( - ); Chemical: amino acids