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The first course of high - dose cytosine arabinoside resulted in no unusual symptoms , but on day 21 of the second course of treatment , the patient complained of numbness in his right foot .
 Chemical: cytosine arabinoside; Disease: numbness
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: cytosine arabinoside; Disease: numbness