15961
We demonstrate resonance linewidths as narrow as 11 mHz , permitting resolution of minute frequency differences and precise determination of long - range J - couplings .
 None
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:  
Answer:
 None