5380
It has encouraged many attempts to develop new asymmetric syntheses of carbohelicenes , as well as some chiral separations of enantiomers and diastereoisomers .
 Chemical: carbohelicenes
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: carbohelicenes 
Answer:
 Chemical: carbohelicenes