20431
Lysergic acid diethylamide ( LSD ) and 2 , 5 - dimethoxy - 4 - iodoamphetamine ( DOI ) are serotonergic hallucinogens and activation of 5HT2A receptors likely underlies their hallucinogenic effects .
 Chemical: Lysergic acid diethylamide; Chemical: LSD; Chemical: 2 , 5 - dimethoxy - 4 - iodoamphetamine; Chemical: DOI
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: Lysergic acid diethylamide; Chemical: LSD; Chemical: 2 , 5 - dimethoxy - 4 - iodoamphetamine; Chemical: DOI