88859
In 1824 , Sadi Carnot analyzed the efficiency of steam engines using caloric theory ; he developed the notion of a reversible process and , in postulating that no such thing exists in nature , laid the foundation for the second law of thermodynamics .
 person: Sadi Carnot
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Sadi Carnot 
Answer:
 person: Sadi Carnot