20983
In this study , three artificial membranes ( isopropyl myristate ( IPM ) , certramides and Strat - M (TM) ) were evaluated for their ability to predict the skin permeability of caffeine , cortisone , diclofenac sodium , mannitol , salicylic acid and testosterone applied in propylene glycol , water and ethanol as unsaturated and saturated concentrations .
 Chemical: isopropyl myristate; Chemical: IPM; Chemical: certramides; Chemical: caffeine; Chemical: cortisone; Chemical: diclofenac sodium; Chemical: mannitol; Chemical: salicylic acid; Chemical: testosterone; Chemical: propylene glycol; Chemical: ethanol
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: isopropyl myristate, IPM, certramides, caffeine, cortisone, diclofenac sodium, mannitol, salicylic acid, testosterone, propylene glycol, ethanol 
Answer:
 Chemical: isopropyl myristate; Chemical: IPM; Chemical: certramides; Chemical: caffeine; Chemical: cortisone; Chemical: diclofenac sodium; Chemical: mannitol; Chemical: salicylic acid; Chemical: testosterone; Chemical: propylene glycol; Chemical: ethanol