15089
Anl - labeled proteins can be tagged with fluorescent dyes or affinity reagents via either copper - catalyzed or strain - promoted azide - alkyne cycloaddition .
 Chemical: Anl; Chemical: copper
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: Anl; Chemical: copper