2473
The mechanism by which E2 - C represses E2 - dependent enhancer activity most likely involves competition with E2 for binding to a common transcriptional regulatory site . ( ABSTRACT TRUNCATED AT 400 WORDS )
 GENE: E2 - C; GENE: E2 - dependent enhancer; GENE: E2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: E2 - C, E2 - dependent enhancer, E2 
Answer:
 GENE: E2 - C; GENE: E2 - dependent enhancer; GENE: E2