23144
Due to high affinity for the 5 - HT1A receptor and moderate affinity for SERT , compounds 31 , 32 , 35 , and 37 were evaluated for their affinity for D2L , 5 - HT6 , 5 - HT7 and 5 - HT2A receptors .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None