8567
We report vibrational excitation of CO from its ground ( v = 0 ) to first excited ( v = 1 ) vibrational state in collision with Au ( 111 ) at an incidence energy of translation of E ( I ) = 0 . 45 eV .
 Chemical: CO; 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: CO; Chemical: Au