19938
Although these compounds are able to attenuate or prevent most of the behavioral and neurochemical effects of ethanol , the efficacy of acetaldehyde sequestration , by using agents such as D - penicillamine ( DP ) , in relapse prevention has not been studied yet .
 Chemical: ethanol; Chemical: acetaldehyde; Chemical: D - penicillamine
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: ethanol; Chemical: acetaldehyde; Chemical: D - penicillamine