383770
He studied medicine in Berlin and Marburg , and from 1848 served as a prosector under Franz Ludwig Fick ( 1813-1858 ) and as an assistant to Carl Ludwig ( 1816-1895 ) in Marburg .
 location: Berlin; location: Marburg; person: Franz Ludwig Fick; person: Carl Ludwig; organization: Marburg
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: Berlin, Marburg, Franz Ludwig Fick, Carl Ludwig, Marburg 
Answer:
 location: Berlin; location: Marburg; person: Franz Ludwig Fick; person: Carl Ludwig; organization: Marburg