27810
In this study we evaluated the effect of Ph alpha 1 beta when injected peripherally or intrathecally in a rat model of spontaneous pain induced by capsaicin .
 Chemical: capsaicin
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: capsaicin 
Answer:
 Chemical: capsaicin