3503
Hepatic veno - occlusive disease caused by 6 - thioguanine .
 Disease: Hepatic veno - occlusive disease; Chemical: 6 - thioguanine
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:
 Disease: Hepatic veno - occlusive disease; Chemical: 6 - thioguanine