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In the current study , Hedgehog signaling in tumor related vasculature and microenvironment was examined using human umbilical vein endothelial cells and B16F0 ( murine melanoma ) tumors models .
 Anatomy: tumor; Anatomy: vasculature; Anatomy: human umbilical vein endothelial cells; Anatomy: B16F0; Anatomy: melanoma; Anatomy: tumors
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: tumor; Anatomy: vasculature; Anatomy: human umbilical vein endothelial cells; Anatomy: B16F0; Anatomy: melanoma; Anatomy: tumors