203824
In liquids where there are considerable interactions between solute and solvent molecule , the Stokes ' radius ( of a perfect sphere ) is proportional to frictional coefficient f and inverse proportional to viscosity η as follows : \ R_H = \ frac .
 person: 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: Stokes 
Answer:
 person: Stokes