1160
Nicotine injected both acutely and following repeated pre - exposure significantly improved both intradimensional and extradimensional set shifting performance in the task .
 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