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An example of this is the use of numerical approximations to the Navier–Stokes equations to describe aerodynamic flow over an aircraft , or the use of the Finite element method to calculate the stresses in complex components .
 person: Navier–Stokes
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: Navier–Stokes 
Answer:
 person: Navier–Stokes