3879
On the antiarrhythmic activity of one N - substituted piperazine derivative of trans - 2 - amino - 3 - hydroxy - 1 , 2 , 3 , 4 - tetrahydroanaphthalene .
 Chemical: piperazine; Chemical: trans - 2 - amino - 3 - hydroxy - 1 , 2 , 3 , 4 - tetrahydroanaphthalene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: piperazine; Chemical: trans - 2 - amino - 3 - hydroxy - 1 , 2 , 3 , 4 - tetrahydroanaphthalene