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The apparent mesenchymal to epithelial conversion of the tumor cells mimics the conversion that occurs during embryonic kidney development , suggesting that Met - HGF / SF signaling plays a role in this process as well as in tumors that express both epithelial and mesenchymal markers .
 Anatomy: mesenchymal; Anatomy: epithelial; Anatomy: tumor cells; Anatomy: embryonic kidney; Anatomy: tumors; Anatomy: epithelial; Anatomy: mesenchymal
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: mesenchymal; Anatomy: epithelial; Anatomy: tumor cells; Anatomy: embryonic kidney; Anatomy: tumors; Anatomy: epithelial; Anatomy: mesenchymal