28284
The electrical ( sigma ) and thermal ( k ) conductivities of the Au film are found to be reduced dramatically from their bulk counterparts by 93 . 7 % ( sigma ) and 80 . 5 % ( k ) .
 Chemical: Au
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: Au