20 Portman Square
E428818
20 Portman Square is a prestigious address in London’s Marylebone district, known for housing the exclusive private members’ club Home House within a historic Georgian townhouse.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 20 Portman Square canonical | 1 |
| No. 20 Portman Square | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4305424 — 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: 20 Portman Square Context triple: [Home House, London, streetAddress, 20 Portman Square]
-
A.
Woburn Square
Woburn Square is a small Georgian garden square in Bloomsbury, central London, known for its historic architecture and academic surroundings.
-
B.
Grosvenor Place
Grosvenor Place is a major road in central London near Victoria, known for its proximity to Buckingham Palace and its role as part of the city’s inner ring road.
-
C.
Grosvenor Square
Grosvenor Square is a large, historic garden square in London’s Mayfair district, long associated with aristocratic residences and prominent diplomatic buildings.
-
D.
Grosvenor Square
Grosvenor Square is a public square located in the Chorlton-on-Medlock district of Manchester, England.
-
E.
17 Smith Square
17 Smith Square is a notable address in Westminster, London, historically associated with government and political offices, including the former Conservative Party headquarters.
- 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: 20 Portman Square Target entity description: 20 Portman Square is a prestigious address in London’s Marylebone district, known for housing the exclusive private members’ club Home House within a historic Georgian townhouse.
-
A.
Woburn Square
Woburn Square is a small Georgian garden square in Bloomsbury, central London, known for its historic architecture and academic surroundings.
-
B.
Grosvenor Place
Grosvenor Place is a major road in central London near Victoria, known for its proximity to Buckingham Palace and its role as part of the city’s inner ring road.
-
C.
Grosvenor Square
Grosvenor Square is a large, historic garden square in London’s Mayfair district, long associated with aristocratic residences and prominent diplomatic buildings.
-
D.
Grosvenor Square
Grosvenor Square is a public square located in the Chorlton-on-Medlock district of Manchester, England.
-
E.
17 Smith Square
17 Smith Square is a notable address in Westminster, London, historically associated with government and political offices, including the former Conservative Party headquarters.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
building
ⓘ
street address ⓘ |
| architecturalStyle | Georgian architecture ⓘ |
| associatedWith | Home House private members’ club NERFINISHED ⓘ |
| borough | City of Westminster NERFINISHED ⓘ |
| buildingUse | private members club ⓘ |
| country | United Kingdom ⓘ |
| district | Marylebone NERFINISHED ⓘ |
| hasFunction |
hospitality venue
ⓘ
social venue ⓘ |
| hasGeographicFeature | overlooks Portman Square gardens ⓘ |
| hasTenant | Home House NERFINISHED ⓘ |
| heritage | Georgian townhouse ⓘ |
| houses | Home House NERFINISHED ⓘ |
| locatedIn |
City of Westminster
ⓘ
England ⓘ London NERFINISHED ⓘ Marylebone NERFINISHED ⓘ Portman Square NERFINISHED ⓘ United Kingdom ⓘ |
| neighbourhood | Marylebone NERFINISHED ⓘ |
| notableFor |
historic Georgian townhouse
ⓘ
housing the private members’ club Home House ⓘ |
| partOf | Portman Estate NERFINISHED ⓘ |
| region | Greater London ⓘ |
| reputation | prestigious address in Marylebone ⓘ |
| streetName | Portman Square NERFINISHED ⓘ |
| streetNumber | 20 ⓘ |
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: 20 Portman Square Description of subject: 20 Portman Square is a prestigious address in London’s Marylebone district, known for housing the exclusive private members’ club Home House within a historic Georgian townhouse.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
No. 20 Portman Square