19028
The largest changes in the conductance are observed when the Au - S - C angle and the Au - S - C - C dihedral are simultaneously constrained .
 Chemical: Au - S - C; Chemical: Au - S - C - C
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: Au - S - C, Au - S - C - C 
Answer:
 Chemical: Au - S - C; Chemical: Au - S - C - C