8172
An oxycodone hapten containing a tetraglycine linker at the C6 position ( 6OXY ( Gly ) ( 4 ) OH ) conjugated to keyhole limpet hemocyanin ( KLH ) has shown early proof - of - efficacy in rodents as a candidate immunogen ( 6OXY ( Gly ) ( 4 ) - KLH ) for the treatment of oxycodone abuse .
 Chemical: oxycodone; Chemical: tetraglycine; Chemical: 6OXY ( Gly ) ( 4 ) OH; Chemical: 6OXY ( Gly ) ( 4 ); Chemical: oxycodone
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: oxycodone; Chemical: tetraglycine; Chemical: 6OXY ( Gly ) ( 4 ) OH; Chemical: 6OXY ( Gly ) ( 4 ); Chemical: oxycodone