20727
Synthesis of novel bis - anthraquinone derivatives and their biological evaluation as antitumor agents .
 Chemical: bis - anthraquinone
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: bis - anthraquinone 
Answer:
 Chemical: bis - anthraquinone