Century 21
E324168
Century 21 is a large real estate brokerage franchise known for its extensive network of independently owned and operated offices across the United States and internationally.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Century 21 canonical | 1 |
| ERA Real Estate | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3071016 — 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: Century 21 Context triple: [Home Run Derby, previousSponsor, Century 21]
-
A.
Century 21
Century 21 was the futuristic, space-age theme of the 1962 Seattle World’s Fair, envisioning life and technology in the 21st century.
-
B.
Newmark
Newmark is a prominent commercial real estate services firm known for brokerage, property management, and advisory work on landmark buildings and major properties.
-
C.
Inland Real Estate Group
Inland Real Estate Group is a U.S.-based commercial real estate and finance company known for owning, managing, and developing income-producing properties and real estate investment products.
-
D.
Taubman
Taubman is a surname most prominently associated with A. Alfred Taubman, the influential American real estate developer and philanthropist known for pioneering the modern shopping mall.
-
E.
RFR Realty
RFR Realty is a New York–based real estate investment and development firm known for owning and revitalizing prominent modernist and landmark commercial properties.
- 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: Century 21 Target entity description: Century 21 is a large real estate brokerage franchise known for its extensive network of independently owned and operated offices across the United States and internationally.
-
A.
Century 21
Century 21 was the futuristic, space-age theme of the 1962 Seattle World’s Fair, envisioning life and technology in the 21st century.
-
B.
Newmark
Newmark is a prominent commercial real estate services firm known for brokerage, property management, and advisory work on landmark buildings and major properties.
-
C.
Inland Real Estate Group
Inland Real Estate Group is a U.S.-based commercial real estate and finance company known for owning, managing, and developing income-producing properties and real estate investment products.
-
D.
Taubman
Taubman is a surname most prominently associated with A. Alfred Taubman, the influential American real estate developer and philanthropist known for pioneering the modern shopping mall.
-
E.
RFR Realty
RFR Realty is a New York–based real estate investment and development firm known for owning and revitalizing prominent modernist and landmark commercial properties.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
franchise brand
ⓘ
real estate brokerage franchise ⓘ |
| brandCategory | real estate brand ⓘ |
| brandType | consumer services brand ⓘ |
| businessSector | services ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| focusesOn |
real estate marketing and promotion
ⓘ
real estate transactions ⓘ |
| hasBrandPositioning | full-service real estate brokerage ⓘ |
| hasBusinessModel | franchising ⓘ |
| hasChannel |
brick-and-mortar offices
ⓘ
online property listings ⓘ |
| hasCharacteristic |
brand recognition in real estate
ⓘ
international presence ⓘ large franchise network ⓘ |
| hasCompetitor |
Better Homes and Gardens
ⓘ
surface form:
Better Homes and Gardens Real Estate
Coldwell Banker ⓘ Century 21 self-linksurface differs ⓘ
surface form:
ERA Real Estate
Keller Williams Realty ⓘ RE/MAX ⓘ |
| hasNetworkType | independently owned and operated offices ⓘ |
| hasOrganizationalStructure | franchisor–franchisee ⓘ |
| hasService |
buyer representation
ⓘ
property listing services ⓘ real estate brokerage services ⓘ real estate consulting ⓘ real estate marketing ⓘ seller representation ⓘ |
| hasTargetCustomer |
home buyers
ⓘ
home sellers ⓘ real estate investors ⓘ |
| industry | real estate ⓘ |
| offers |
real estate agent support and tools
ⓘ
training and resources for franchisees ⓘ |
| officeOwnershipModel | independently owned and operated ⓘ |
| operatesInCountry |
United States of America
ⓘ
surface form:
United States
|
| operatesInIndustrySegment |
commercial real estate
ⓘ
residential real estate ⓘ |
| operatesInRegion |
Asia
ⓘ
Europe ⓘ Latin America ⓘ Middle East ⓘ North America ⓘ |
| providesTo |
commercial real estate market
ⓘ
residential real estate market ⓘ |
| servesMarket |
commercial property market
ⓘ
residential property market ⓘ |
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: Century 21 Description of subject: Century 21 is a large real estate brokerage franchise known for its extensive network of independently owned and operated offices across the United States and internationally.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Home Run Derby
this entity surface form:
ERA Real Estate