18702
To explore the potential physical basis of the " hindering role " of self - organized interfacial water , the dynamical and structural properties as well as the status of hydrogen bonds ( H - bonds ) for interfacial water were investigated .
 Chemical: hydrogen; 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: hydrogen; Chemical: H