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Oligomers corresponding to the region of the mlc - 1 / 3 enhancer , which encompasses this conserved sequence , bound MEF - 2 and competed for its binding to the mck enhancer .
 GENE: mlc - 1 / 3 enhancer; GENE: MEF - 2; GENE: mck
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: mlc - 1 / 3 enhancer; GENE: MEF - 2; GENE: mck