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We conclude with a brief discussion of emergent NRT products ( e . g . , oral nicotine spray , among others ) , which may ultimately offer greater efficacy than current formulations .
 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