3006
We observed no changes in nicotine - induced locomotor response , striatal L - [ 3H ] nicotine and [ 3H ] spiperone binding in the animals pretreated with nicotine for 1 day .
 Chemical: nicotine; Chemical: nicotine; Chemical: spiperone; Chemical: nicotine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: nicotine; Chemical: nicotine; Chemical: spiperone; Chemical: nicotine