8234
Metformin - mediated downregulation of p38 mitogen - activated protein kinase - dependent excision repair cross - complementing 1 decreases DNA repair capacity and sensitizes human lung cancer cells to paclitaxel .
 Chemical: Metformin; Chemical: paclitaxel
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: Metformin, paclitaxel 
Answer:
 Chemical: Metformin; Chemical: paclitaxel