8764
The lines also differed in postsynaptic , but not presynaptic , 5 - HT1A receptors .
 GENE: 5 - HT1A receptors
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: 5 - HT1A receptors 
Answer:
 GENE: 5 - HT1A receptors