23340
Structural elucidation of all the compounds were performed by spectral methods such as 1D and 2D ( ( 1 ) H - ( 1 ) H COSY , HMQC , and HMBC ) NMR spectroscopy , in addition to high resolution mass spectrometry .
 Chemical: ( 1 ) H; Chemical: ( 1 ) H
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: ( 1 ) H, ( 1 ) H 
Answer:
 Chemical: ( 1 ) H; Chemical: ( 1 ) H