9027
The development of ringed sideroblasts in erythroid colonies by iron staining and their X-inactivation pattern were also examined.
 cell line: erythroid colonies; cell type: ringed sideroblasts
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: erythroid colonies, ringed sideroblasts 
Answer:
 cell line: erythroid colonies; cell type: ringed sideroblasts