3640
Two halogenated anesthetics , enflurane and isoflurane , have been associated with an allergic - type hepatic injury both alone and following previous exposure to halothane .
 Chemical: enflurane; Chemical: isoflurane; Disease: hepatic injury; Chemical: halothane
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: enflurane; Chemical: isoflurane; Disease: hepatic injury; Chemical: halothane