9889
Transcription factor NF-kappaB regulates inducible Oct-2 gene expression in precursor B lymphocytes .
 DNA: Oct-2 gene; protein: Oct-2; cell type: precursor B lymphocytes; protein: NF-kappaB; protein: Transcription factor
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: Oct-2 gene, Oct-2, precursor B lymphocytes, NF-kappaB, Transcription factor 
Answer:
 DNA: Oct-2 gene; protein: Oct-2; cell type: precursor B lymphocytes; protein: NF-kappaB; protein: Transcription factor