22191
The anticancer activity of the newly synthesized compounds was tested in vitro using a two - stage process utilizing 60 different human tumor cell lines representing leukemia , melanoma and cancers of lung , colon , central nervous system , ovary , kidney , prostate as well as breast .
 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