2099
Etiologic factors in the pathogenesis of liver tumors associated with oral contraceptives .
 Disease: liver tumors; Chemical: oral contraceptives
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: liver tumors; Chemical: oral contraceptives