15356
Out of these , only Si is of use in NMR and EPR spectroscopy , as it is the only one with a nuclear spin ( " I " = ) .
 location: Si
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Si 
Answer:
 location: Si