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John S. Dyer , a family friend who was Chief Clerk at the Admiralty and Secretary of Greenwich Hospital ( and who would later become his father-in-law ) , obtained a position for Meredith as a midshipman aboard a ship in the Royal Navy .
 organization: Admiralty; location: Greenwich; organization: Royal Navy
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: Admiralty, Greenwich, Royal Navy 
Answer:
 organization: Admiralty; location: Greenwich; organization: Royal Navy