Post Office Tower
E665869
The Post Office Tower, now known as the BT Tower, is a prominent telecommunications tower and London landmark that was once the tallest building in the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Post Office Tower canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7458261 — 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: Post Office Tower Context triple: [BT Tower, formerName, Post Office Tower]
-
A.
Victoria Tower
Victoria Tower is a prominent 19th-century stone clock tower and landmark overlooking the harbour in Saint Peter Port on the island of Guernsey.
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B.
Victoria Tower
Victoria Tower is a prominent square stone tower at the southwest end of the Palace of Westminster in London, historically used to store the parliamentary archives and forming part of the iconic UK parliamentary skyline.
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C.
London Bridge Tower
London Bridge Tower, better known as The Shard, is a landmark glass skyscraper in London and one of the tallest buildings in the United Kingdom.
-
D.
Round Tower
The Round Tower is a historic circular fortification and landmark in the Finnish town of Vyborg, notable for its medieval military architecture and role in the town’s defenses.
-
E.
Round Tower
Round Tower is a historic 17th-century astronomical observatory and iconic cylindrical tower in central Copenhagen, known for its spiral ramp and panoramic city views.
- 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: Post Office Tower Target entity description: The Post Office Tower, now known as the BT Tower, is a prominent telecommunications tower and London landmark that was once the tallest building in the city.
-
A.
Victoria Tower
Victoria Tower is a prominent 19th-century stone clock tower and landmark overlooking the harbour in Saint Peter Port on the island of Guernsey.
-
B.
Victoria Tower
Victoria Tower is a prominent square stone tower at the southwest end of the Palace of Westminster in London, historically used to store the parliamentary archives and forming part of the iconic UK parliamentary skyline.
-
C.
London Bridge Tower
London Bridge Tower, better known as The Shard, is a landmark glass skyscraper in London and one of the tallest buildings in the United Kingdom.
-
D.
Round Tower
The Round Tower is a historic circular fortification and landmark in the Finnish town of Vyborg, notable for its medieval military architecture and role in the town’s defenses.
-
E.
Round Tower
Round Tower is a historic 17th-century astronomical observatory and iconic cylindrical tower in central Copenhagen, known for its spiral ramp and panoramic city views.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
landmark
ⓘ
observation tower ⓘ telecommunications tower ⓘ |
| alternativeName |
BT Tower
NERFINISHED
ⓘ
British Telecom Tower NERFINISHED ⓘ GPO Tower NERFINISHED ⓘ London Telecom Tower NERFINISHED ⓘ |
| architect |
Eric Bedford
NERFINISHED
ⓘ
G R Yeats NERFINISHED ⓘ |
| architecturalStyle | Modernist architecture NERFINISHED ⓘ |
| city | London NERFINISHED ⓘ |
| completionDate | 1964 ⓘ |
| constructionStartDate | 1961 ⓘ |
| country | United Kingdom ⓘ |
| hasAntennaSpire | yes ⓘ |
| hasFeature |
microwave aerials
ⓘ
revolving restaurant ⓘ |
| height |
177 metres
ⓘ
581 feet ⓘ |
| heritageListingDate | 2003 ⓘ |
| heritageStatus | Grade II listed building ⓘ |
| latitude | 51.5215 N ⓘ |
| locatedIn |
Fitzrovia
NERFINISHED
ⓘ
London NERFINISHED ⓘ United Kingdom ⓘ |
| longitude | 0.1388 W ⓘ |
| managedBy | BT Group NERFINISHED ⓘ |
| namedAfter | General Post Office NERFINISHED ⓘ |
| numberOfFloors | 37 ⓘ |
| officialOpeningDate | 8 October 1965 ⓘ |
| openedBy | Harold Wilson NERFINISHED ⓘ |
| openingDate | 1965 ⓘ |
| operator | BT Group NERFINISHED ⓘ |
| owner | BT Group NERFINISHED ⓘ |
| partOf | UK telecommunications network ⓘ |
| primaryFunction | telecommunications ⓘ |
| publicAccessSuspended | after 1971 bombing ⓘ |
| publicObservationGalleryStatus | closed ⓘ |
| restaurantClosureDate | 1980 ⓘ |
| restaurantOpeningDate | 1966 ⓘ |
| restaurantOperator | Butlins NERFINISHED ⓘ |
| streetAddress | 60 Cleveland Street ⓘ |
| sufferedEvent | 1971 bombing ⓘ |
| visibleFrom | many parts of central London ⓘ |
| wasTallestBuildingFrom | 1964 ⓘ |
| wasTallestBuildingIn | London NERFINISHED ⓘ |
| wasTallestBuildingUntil | 1980 ⓘ |
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: Post Office Tower Description of subject: The Post Office Tower, now known as the BT Tower, is a prominent telecommunications tower and London landmark that was once the tallest building in the city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.