19988
This highly skewed mobility distribution is also found for the 20 - saccharide chain , which shows from mass spectrometry a more uniform ( symmetrical ) with respect to sulfation level .
 Chemical: saccharide
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: saccharide 
Answer:
 Chemical: saccharide