6384
The complete distribution of surface and bulk silanols , and of isolated , geminal and vicinal silanols for all these materials is presented .
 Chemical: silanols; Chemical: geminal and vicinal silanols
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: silanols; Chemical: geminal and vicinal silanols