26074
The learned helplessness ( LH ) paradigm produces a reliable animal model of depression that expresses a deficit in escape behavior ( LH model ) ; an alternative phenotype that does not exhibit LH is a model of resilience to depression ( non - LH model ) .
 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