86871
This was to distinguish it from speckle interferometry , but should not be confused with the Michelson interferometer which is one common " laboratory " interferometer configuration of which the interferometer used in the Michelson–Morley experiment was an instance .
 person: Michelson; person: Michelson–Morley
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: Michelson, Michelson–Morley 
Answer:
 person: Michelson; person: Michelson–Morley