491
We have previously shown that epidermal growth factor ( EGF ) downregulates E - cadherin and induces ovarian cancer cell invasion through the H ( 2 ) O ( 2 ) / p38 MAPK - mediated upregulation of the E - cadherin transcriptional repressor Snail .
 Chemical: H ( 2 ) O ( 2 )
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: H ( 2 ) O ( 2 )