12535
Hox11 null mouse embryos have elevated Aldh1 mRNA in spleen primordia prior to atrophy , while Aldh1 seems to be repressed by Hox11 during organogenesis of the spleens of wild-type mice .
 protein: Aldh1; protein: Hox11; RNA: Aldh1 mRNA; protein: Hox11; protein: Aldh1
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: Aldh1, Hox11, Aldh1 mRNA, Hox11, Aldh1 
Answer:
 protein: Aldh1; protein: Hox11; RNA: Aldh1 mRNA; protein: Hox11; protein: Aldh1