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The " diesel engine " , named after Rudolf Diesel , is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression ( adiabatic compression ) ; thus , the diesel engine is a so-called compression-ignition engine ( CI engine ) .
 person: Rudolf Diesel
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Rudolf Diesel