4212
A large population - based follow - up study of trimethoprim - sulfamethoxazole , trimethoprim , and cephalexin for uncommon serious drug toxicity .
 Chemical: trimethoprim - sulfamethoxazole; Chemical: trimethoprim; Chemical: cephalexin; Disease: drug toxicity
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: trimethoprim - sulfamethoxazole; Chemical: trimethoprim; Chemical: cephalexin; Disease: drug toxicity