13951
All data suggest that these three coumarins have high BBB permeability and have pharmacokinetic potentials for the treatment of central nervous system diseases .
 Chemical: coumarins
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: coumarins 
Answer:
 Chemical: coumarins