740
RESULTS : Eighteen of the DOX rats died prematurely of general toxicity during the 9 - week period .
 Chemical: DOX; 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: DOX, toxicity 
Answer:
 Chemical: DOX; Disease: toxicity