20297
However , one formulation was designed such that the emitted aerosol particles contained BDP and glycerol , a common inhalation particle modifying excipient , in a 1 : 1 mass ratio .
 Chemical: BDP; Chemical: glycerol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: BDP; Chemical: glycerol