243664
Some researchers have suggested that US wholesale gasoline prices may be inflated by 0.2 to 0.6 cents per gallon due to the market power wielded by vertically integrated players in the industry .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None