2738
Triethylenetetramine ( TETA ; Syprine ; Merck Rahway , NJ ) , a drug for Wilson ' s disease , is a copper chelator and a charge - deficient analog of polyamine spermidine .
 Chemical: Triethylenetetramine; Chemical: TETA; Chemical: Syprine; Chemical: copper; Chemical: polyamine; Chemical: spermidine
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: Triethylenetetramine; Chemical: TETA; Chemical: Syprine; Chemical: copper; Chemical: polyamine; Chemical: spermidine