2951
" Volatility has a bid to it -- longer-dated volatility more than short-dated because the event people were buying for has passed and now perhaps people will sell some short dated vol and buy some long dated vol , " he said .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities:  
Answer:
 None