25512
Moreover , we found that exposure of MDA - MB - 435 cells to EVn - 50 or VB1 caused obvious apoptosis of MDA - MB - 435 cells .
 Chemical: EVn - 50; Chemical: VB1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: EVn - 50; Chemical: VB1