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Bone marrow - derived mesenchymal stem cells ( BM - MSC ) have been demonstrated to be an attractive therapeutic cell source for tissue regeneration and repair .
 Anatomy: Bone marrow - derived mesenchymal stem cells; Anatomy: BM - MSC; Anatomy: cell; Anatomy: tissue
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: Bone marrow - derived mesenchymal stem cells, BM - MSC, cell, tissue 
Answer:
 Anatomy: Bone marrow - derived mesenchymal stem cells; Anatomy: BM - MSC; Anatomy: cell; Anatomy: tissue