6147
GATA transcription factors associate with a novel class of nuclear bodies in erythroblasts and megakaryocytes .
 cell type: erythroblasts; cell type: megakaryocytes; protein: GATA transcription factors
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: erythroblasts, megakaryocytes, GATA transcription factors 
Answer:
 cell type: erythroblasts; cell type: megakaryocytes; protein: GATA transcription factors