21527
Synthesis of ( R ) - norbgugaine and its potential as quorum sensing inhibitor against Pseudomonas aeruginosa .
 Chemical: ( R ) - norbgugaine
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: ( R ) - norbgugaine 
Answer:
 Chemical: ( R ) - norbgugaine