20599
The trithiol formed a stable self - assembled monolayer ( SAM ) on Au ( 111 ) , wherein each molecule is bound to the surface by three - point adsorption using all sulfur atoms , with confirmation by PM - IRRAS and XPS analyses .
 Chemical: trithiol; Chemical: Au ( 111 ); Chemical: sulfur
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: trithiol, Au ( 111 ), sulfur 
Answer:
 Chemical: trithiol; Chemical: Au ( 111 ); Chemical: sulfur