11848
Transcriptional regulation of the ferritin heavy-chain gene : the activity of the CCAAT binding factor NF-Y is modulated in heme-treated Friend leukemia cells and during monocyte-to-macrophage differentiation .
 cell line: heme-treated Friend leukemia cells; protein: CCAAT binding factor; protein: CCAAT binding factor NF-Y; DNA: ferritin heavy-chain gene; protein: NF-Y
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: heme-treated Friend leukemia cells, CCAAT binding factor, CCAAT binding factor NF-Y, ferritin heavy-chain gene, NF-Y 
Answer:
 cell line: heme-treated Friend leukemia cells; protein: CCAAT binding factor; protein: CCAAT binding factor NF-Y; DNA: ferritin heavy-chain gene; protein: NF-Y