23000
The sequels of excess iron deposition in the liver are fibrosis and enhanced levels of serum enzymes and bilirubin markers .
 Chemical: iron; Chemical: bilirubin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: iron, bilirubin 
Answer:
 Chemical: iron; Chemical: bilirubin