1535
Density functional study on the adsorption of the drug isoniazid onto pristine and B - doped single wall carbon nanotubes .
 Chemical: isoniazid; Chemical: B; Chemical: carbon
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: isoniazid; Chemical: B; Chemical: carbon