17953
Hyperactivity , stereotypy , and perseverative behaviors are increased in these mice , with brain - area specific increases in serotonin levels and serotonin turnover , and marked increases in postsynaptic 5 - HT ( 1A ) receptor - mediated stereotypic responses .
 Chemical: serotonin; Chemical: serotonin; Chemical: 5 - HT
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: serotonin; Chemical: serotonin; Chemical: 5 - HT