8209
We functionally characterized an H ( 2 ) O ( 2 ) - regulatory motif ( HRM ) ( ( 1 ) AAACCTCAATGAAGA ( 15 ) ) , which was enriched in these promoters and specifically bound amoebic nuclear protein ( s ) .
 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 )