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RESULTS : We identified 27 reports of toxic leukoencephalopathy in patients treated with methotrexate ( intrathecal , systemic ) , 5 - fluorouracil and its derivative carmofur , and capecitabine .
 Disease: leukoencephalopathy; Chemical: methotrexate; Chemical: 5 - fluorouracil; Chemical: carmofur; Chemical: capecitabine
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:
 Disease: leukoencephalopathy; Chemical: methotrexate; Chemical: 5 - fluorouracil; Chemical: carmofur; Chemical: capecitabine