17417
Compared to covalent link only low interaction ( hydrogen bonds ) between the different catechins present in the tea extract would stabilise l - 5 - MTHF .
 Chemical: hydrogen; Chemical: catechins; Chemical: l - 5 - MTHF
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: hydrogen, catechins, l - 5 - MTHF 
Answer:
 Chemical: hydrogen; Chemical: catechins; Chemical: l - 5 - MTHF