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The Stern–Gerlach experiment - where an atom is exposed to a magnetic field - provides one such example .
 person: Stern–Gerlach
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: Stern–Gerlach 
Answer:
 person: Stern–Gerlach