749
All the flavonoids exhibited abundant [ M - H ] - ions , which triggered data - dependent multistage mass spectrometry fragmentations .
 Chemical: flavonoids; Chemical: H
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: flavonoids; Chemical: H