26201
Among existing medications , nicotine replacement therapy ( NRT ) has been available the longest , has the largest literature base in support , and is the only option for over - the - counter access .
 Chemical: nicotine
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: nicotine