13097
Only within the last five years have proteomic - scale experiments utilizing ETD allowed the assignment of hundreds of O - GlcNAc sites within cells and subcellular structures .
 Chemical: O - GlcNAc
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: O - GlcNAc