1072
Transcription of a human U2 small nuclear RNA(snRNA)-encoding gene in HeLa cells requires a distal enhancer element , which is composed of one octamer motif ( Oct ) and three Sp 1-binding sites .
 DNA: U2 small nuclear RNA(snRNA)-encoding gene; DNA: distal enhancer element; DNA: octamer motif; DNA: Sp 1-binding sites; cell line: HeLa cells; DNA: Oct
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: U2 small nuclear RNA(snRNA)-encoding gene; DNA: distal enhancer element; DNA: octamer motif; DNA: Sp 1-binding sites; cell line: HeLa cells; DNA: Oct