1950
The tumors of A431 supplemented with F - 2 cells were profoundly vascularized throughout by the tubular structures formed by F - 2 cells , the lumen of which contained the host rat blood cells .
 Anatomy: tumors; Anatomy: A431; Anatomy: F - 2 cells; Anatomy: tubular structures; Anatomy: F - 2 cells; Anatomy: lumen; Anatomy: blood cells
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: tumors, A431, F - 2 cells, tubular structures, F - 2 cells, lumen, blood cells 
Answer:
 Anatomy: tumors; Anatomy: A431; Anatomy: F - 2 cells; Anatomy: tubular structures; Anatomy: F - 2 cells; Anatomy: lumen; Anatomy: blood cells