Royal Observatory, Greenwich
E260941
The Royal Observatory, Greenwich is a historic astronomical observatory in London best known as the location of the Prime Meridian and for its pivotal role in the development of modern navigation and timekeeping.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T2146491 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Royal Observatory, Greenwich Context triple: [Greenwich Park, contains, Royal Observatory, Greenwich]
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A.
Maritime Greenwich
Maritime Greenwich is a historic district in southeast London renowned for its maritime heritage, royal park, and the Royal Observatory, where the Prime Meridian is located.
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B.
Portland Observatory
The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
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C.
Natural History Museum, London
The Natural History Museum in London is a major British institution renowned for its vast collections of specimens from natural history, iconic dinosaur displays, and grand Romanesque architecture in South Kensington.
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D.
Westminster World Heritage Site
Westminster World Heritage Site is a UNESCO-listed historic area in central London that encompasses key British ceremonial and political landmarks, including Westminster Abbey and the Palace of Westminster.
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E.
Handel House Museum, London
The Handel House Museum in London is a historic house museum dedicated to the life and music of composer George Frideric Handel, located in the building where he lived and worked.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Royal Observatory, Greenwich Target entity description: The Royal Observatory, Greenwich is a historic astronomical observatory in London best known as the location of the Prime Meridian and for its pivotal role in the development of modern navigation and timekeeping.
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A.
Maritime Greenwich
Maritime Greenwich is a historic district in southeast London renowned for its maritime heritage, royal park, and the Royal Observatory, where the Prime Meridian is located.
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B.
Portland Observatory
The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
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C.
Natural History Museum, London
The Natural History Museum in London is a major British institution renowned for its vast collections of specimens from natural history, iconic dinosaur displays, and grand Romanesque architecture in South Kensington.
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D.
Westminster World Heritage Site
Westminster World Heritage Site is a UNESCO-listed historic area in central London that encompasses key British ceremonial and political landmarks, including Westminster Abbey and the Palace of Westminster.
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E.
Handel House Museum, London
The Handel House Museum in London is a historic house museum dedicated to the life and music of composer George Frideric Handel, located in the building where he lived and worked.
- F. None of above. chosen
Statements (49)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Royal Observatory, Greenwich Description of subject: The Royal Observatory, Greenwich is a historic astronomical observatory in London best known as the location of the Prime Meridian and for its pivotal role in the development of modern navigation and timekeeping.
Referenced by (68)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Royal Park
linked to: Royal Observatory, Greenwich
Greenwich Hospital (Royal Hospital for Seamen), Greenwich
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Royal Observatory, Greenwich
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linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
subject linked to:
Sir George Airy
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
subject linked to:
Blackheath common
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
subject linked to:
Eddington
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich
linked to: Royal Observatory, Greenwich