5543
Vascular endothelial growth factor receptor - 2 ( VEGFR2 ) , the main receptor for VEGF - A , is expressed on endothelial cells and promotes cell survival , proliferation , and other functions .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None