17948
Following administration of the 5 - HT ( 1A / 7 ) agonist 8 - hydroxy - 2 - ( di - n - propylamino ) tetralin ( 8 - OH - DPAT ) , stereotypical head weaving and forepaw treading were increased more in DAT - KO mice than in DAT - WT or - HET mice .
 Chemical: 5 - HT; Chemical: 8 - hydroxy - 2 - ( di - n - propylamino ) tetralin; Chemical: 8 - OH - DPAT
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: 5 - HT; Chemical: 8 - hydroxy - 2 - ( di - n - propylamino ) tetralin; Chemical: 8 - OH - DPAT