21352
In vitro assays with aminoanthracene - cross - linked tubulin indicated inhibition of microtubule polymerization , similar to colchicine .
 Chemical: aminoanthracene; Chemical: colchicine
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: aminoanthracene, colchicine 
Answer:
 Chemical: aminoanthracene; Chemical: colchicine