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Meanwhile , epimerization of taxol in PBS / dichloromethane and PBS / chloroform systems underwent due to the ability of C - Cl bonds to form hydrogen bonding with the hydroxyl group of C7 of taxol .
 Chemical: taxol; Chemical: dichloromethane; Chemical: chloroform; Chemical: C; Chemical: Cl; Chemical: hydrogen; Chemical: hydroxyl; Chemical: taxol
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: taxol, dichloromethane, chloroform, C, Cl, hydrogen, hydroxyl, taxol 
Answer:
 Chemical: taxol; Chemical: dichloromethane; Chemical: chloroform; Chemical: C; Chemical: Cl; Chemical: hydrogen; Chemical: hydroxyl; Chemical: taxol