Lever House
E20787
Lever House is a pioneering International Style glass-and-steel office skyscraper on New York City’s Park Avenue, celebrated as one of the first curtain-wall towers in the United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lever House canonical | 9 |
| 390 Park Avenue | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T94713 — 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: Lever House Context triple: [Skidmore, Owings & Merrill, notableWork, Lever House]
-
A.
Chrysler Building
The Chrysler Building is an iconic Art Deco skyscraper in New York City that briefly held the title of the world’s tallest building in the early 20th century.
-
B.
Stephen A. Schwarzman Building
The Stephen A. Schwarzman Building is the iconic Beaux-Arts flagship library on Fifth Avenue in Manhattan, renowned for its grand reading rooms and stone lion statues.
-
C.
Rockefeller Center
Rockefeller Center is a famous Art Deco commercial complex in Midtown Manhattan known for its iconic ice-skating rink, Christmas tree, and the Top of the Rock observation deck.
-
D.
United Nations Plaza
United Nations Plaza is the public square and surrounding area in Manhattan, New York City, that serves as the primary urban setting and address for the United Nations Headquarters.
-
E.
Empire State Plaza complex
The Empire State Plaza complex is a vast government and civic center in Albany, New York, known for its modernist architecture and role as the hub of New York State’s administrative offices.
- 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: Lever House Target entity description: Lever House is a pioneering International Style glass-and-steel office skyscraper on New York City’s Park Avenue, celebrated as one of the first curtain-wall towers in the United States.
-
A.
Chrysler Building
The Chrysler Building is an iconic Art Deco skyscraper in New York City that briefly held the title of the world’s tallest building in the early 20th century.
-
B.
Stephen A. Schwarzman Building
The Stephen A. Schwarzman Building is the iconic Beaux-Arts flagship library on Fifth Avenue in Manhattan, renowned for its grand reading rooms and stone lion statues.
-
C.
Rockefeller Center
Rockefeller Center is a famous Art Deco commercial complex in Midtown Manhattan known for its iconic ice-skating rink, Christmas tree, and the Top of the Rock observation deck.
-
D.
United Nations Plaza
United Nations Plaza is the public square and surrounding area in Manhattan, New York City, that serves as the primary urban setting and address for the United Nations Headquarters.
-
E.
Empire State Plaza complex
The Empire State Plaza complex is a vast government and civic center in Albany, New York, known for its modernist architecture and role as the hub of New York State’s administrative offices.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
International Style building
ⓘ
curtain wall building ⓘ modernist building ⓘ office building ⓘ skyscraper ⓘ |
| architect |
Gordon Bunshaft
ⓘ
Natalie de Blois ⓘ |
| architecturalStyle | International Style ⓘ |
| architectureFirm | Skidmore, Owings & Merrill ⓘ |
| borough | Manhattan ⓘ |
| buildingType | office ⓘ |
| city | New York City ⓘ |
| completionDate | 1952 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| developer |
Unilever
ⓘ
surface form:
Lever Brothers Company
|
| feature |
continuous glass curtain wall
ⓘ
elevated plaza and courtyard ⓘ pilotis-supported tower ⓘ slab tower set on a low horizontal podium ⓘ |
| function | corporate headquarters ⓘ |
| height |
307 feet
ⓘ
94 meters ⓘ |
| heritageStatus | New York City Landmark ⓘ |
| influenced |
Seagram Building
ⓘ
postwar glass curtain-wall office towers in the United States ⓘ |
| landmarkDesignationBy | New York City Landmarks Preservation Commission ⓘ |
| landmarkDesignationDate | 1982 ⓘ |
| location |
Manhattan
ⓘ
New York City ⓘ Park Avenue ⓘ |
| material |
glass
ⓘ
green-tinted glass ⓘ stainless steel ⓘ steel ⓘ |
| nationalRegisterStatus | contributing property to a historic district ⓘ |
| neighborhood | Midtown Manhattan ⓘ |
| notableFor |
being one of the first curtain-wall skyscrapers in the United States
ⓘ
pioneering International Style corporate architecture on Park Avenue ⓘ |
| numberOfFloors | 21 ⓘ |
| openingDate | 1952 ⓘ |
| originalOccupant |
Unilever
ⓘ
surface form:
Lever Brothers Company
Unilever ⓘ |
| owner |
RFR Realty
ⓘ
Unilever ⓘ |
| renovation | major restoration in the early 2000s ⓘ |
| startDate | 1950 ⓘ |
| streetAddress |
Lever House
self-linksurface differs
ⓘ
surface form:
390 Park Avenue
|
| use |
ground-floor public space
ⓘ
office space ⓘ |
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: Lever House Description of subject: Lever House is a pioneering International Style glass-and-steel office skyscraper on New York City’s Park Avenue, celebrated as one of the first curtain-wall towers in the United States.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
390 Park Avenue