2674
The stereospecificity of the majority of the tested enzymes is shifted to the production of an ( + ) - enantiomer of reduced nabumetone ; only AKR1C1 and AKR1C4 produce predominantly an ( - ) - enantiomer .
 Chemical: nabumetone
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: nabumetone