3005
At the end of each pretreatment period , animals were used for ( i ) determining their locomotor response to acutely injected nicotine ( 0 . 2 mg / kg , s . c . ) and ( ii ) measuring the density of L - [ 3H ] nicotine and [ 3H ] spiperone binding sites in the striatum .
 Chemical: nicotine; Chemical: nicotine; Chemical: spiperone
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