22827
In contrast , Py3MeO - TBPo combined with red - light irradiation induced concentration - and fluence - dependent HeLa cells inactivation .
 Chemical: Py3MeO - TBPo
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: Py3MeO - TBPo 
Answer:
 Chemical: Py3MeO - TBPo