2639
CCNU ( lomustine ) toxicity in dogs : a retrospective study ( 2002 - 07 ) .
 Chemical: CCNU; Chemical: lomustine; Disease: toxicity
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: CCNU, lomustine, toxicity 
Answer:
 Chemical: CCNU; Chemical: lomustine; Disease: toxicity