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Ifosfamide ( IFO ) is an alkylating nitrogen mustard , administrated as an antineoplasmic agent .
 Chemical: Ifosfamide; Chemical: IFO; Chemical: nitrogen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Ifosfamide; Chemical: IFO; Chemical: nitrogen