12986
In addition to vascular disrupting activity verified by in vitro assays , compounds 21 and 31 displayed much higher selectivity for activated HUVECs versus quiescent HUVECs than those of colchicine and combretastatinA - 4 .
 Chemical: colchicine; Chemical: combretastatinA - 4
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: colchicine; Chemical: combretastatinA - 4