4636
The genetic instability observed in the tumor and cell line DNA , together with the germ - line mutation in a mismatch - repair gene , suggest that the MSH2 gene is involved in the onset and / or progression in a subset of ovarian cancer . .
 Disease: tumor; Disease: ovarian cancer
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: tumor, ovarian cancer 
Answer:
 Disease: tumor; Disease: ovarian cancer