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A PEBP2 alpha/AML-1-related factor increases osteocalcin promoter activity through its binding to an osteoblast-specific cis-acting element .
 protein: PEBP2 alpha/AML-1-related factor; DNA: osteocalcin promoter; DNA: osteoblast-specific cis-acting element
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:
 protein: PEBP2 alpha/AML-1-related factor; DNA: osteocalcin promoter; DNA: osteoblast-specific cis-acting element