MGM National Harbor
E32882
MGM National Harbor is a large luxury casino resort and entertainment complex located just outside Washington, D.C., featuring gaming, dining, retail, and performance venues.
All labels observed (4)
| Label | Occurrences |
|---|---|
| MGM National Harbor canonical | 5 |
| MGM National Harbor (nearby) | 1 |
| MGM National Harbor resort and casino | 1 |
| National Harbor, Maryland | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T253846 — 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: MGM National Harbor Context triple: [Prince George’s County, Maryland, contains, MGM National Harbor]
-
A.
Encore Boston Harbor casino resort
Encore Boston Harbor casino resort is a luxury waterfront hotel, casino, and entertainment complex in Everett, Massachusetts, developed by Wynn Resorts and known for its upscale amenities and views of the Boston skyline.
-
B.
Disney's BoardWalk Inn
Disney's BoardWalk Inn is a deluxe, turn-of-the-20th-century Atlantic City–themed hotel located along the lively BoardWalk entertainment district at Walt Disney World in Florida.
-
C.
Wynn Las Vegas
Wynn Las Vegas is a luxury resort and casino on the Las Vegas Strip known for its upscale accommodations, fine dining, and high-end entertainment and shopping.
-
D.
Flamingo Hotel and Casino
Flamingo Hotel and Casino is a historic Las Vegas Strip resort widely regarded as one of the city’s first luxury casinos and a key catalyst in transforming Las Vegas into a major gambling and entertainment destination.
-
E.
Trump National Doral Miami
Trump National Doral Miami is a luxury golf resort in the Miami area, best known for its multiple championship courses and high-profile ownership by the Trump family business.
- 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: MGM National Harbor Target entity description: MGM National Harbor is a large luxury casino resort and entertainment complex located just outside Washington, D.C., featuring gaming, dining, retail, and performance venues.
-
A.
Encore Boston Harbor casino resort
Encore Boston Harbor casino resort is a luxury waterfront hotel, casino, and entertainment complex in Everett, Massachusetts, developed by Wynn Resorts and known for its upscale amenities and views of the Boston skyline.
-
B.
Disney's BoardWalk Inn
Disney's BoardWalk Inn is a deluxe, turn-of-the-20th-century Atlantic City–themed hotel located along the lively BoardWalk entertainment district at Walt Disney World in Florida.
-
C.
Wynn Las Vegas
Wynn Las Vegas is a luxury resort and casino on the Las Vegas Strip known for its upscale accommodations, fine dining, and high-end entertainment and shopping.
-
D.
Flamingo Hotel and Casino
Flamingo Hotel and Casino is a historic Las Vegas Strip resort widely regarded as one of the city’s first luxury casinos and a key catalyst in transforming Las Vegas into a major gambling and entertainment destination.
-
E.
Trump National Doral Miami
Trump National Doral Miami is a luxury golf resort in the Miami area, best known for its multiple championship courses and high-profile ownership by the Trump family business.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
casino resort
ⓘ
entertainment complex ⓘ hotel ⓘ |
| address | 101 MGM National Avenue, Oxon Hill, Maryland, United States ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasCasino | true ⓘ |
| hasCategory |
MGM Resorts International property
ⓘ
casinos in Maryland ⓘ resort in Maryland ⓘ tourist attraction in Prince George's County, Maryland ⓘ |
| hasConventionSpace | true ⓘ |
| hasDining | true ⓘ |
| hasFeature |
casino gaming floor with slot machines and table games
ⓘ
entertainment venues ⓘ high-end retail shops ⓘ luxury hotel tower ⓘ multiple restaurants ⓘ parking facilities ⓘ views of the Potomac River ⓘ |
| hasGamingFloor | true ⓘ |
| hasHotel | true ⓘ |
| hasParkingGarage | true ⓘ |
| hasRegulator | Maryland Lottery and Gaming Control Agency ⓘ |
| hasRetail | true ⓘ |
| hasSpa | true ⓘ |
| hasTheater | true ⓘ |
| hasUse |
dining
ⓘ
gaming ⓘ live entertainment ⓘ lodging ⓘ meetings and events ⓘ retail shopping ⓘ |
| locatedIn |
Oxon Hill, Maryland
ⓘ
Prince George’s County, Maryland ⓘ
surface form:
Prince George's County, Maryland
|
| locatedNear | Washington, D.C. ⓘ |
| nearbyAttraction |
Capital Wheel at National Harbor
ⓘ
National Harbor waterfront development ⓘ |
| nearbyCity |
Alexandria, Virginia
ⓘ
Arlington, Virginia ⓘ Washington, D.C. ⓘ |
| numberOfHotelRooms | approximately 300 ⓘ |
| openingDate | 2016-12-08 ⓘ |
| operatedBy | MGM Resorts International ⓘ |
| ownedBy | MGM Resorts International ⓘ |
| regionServed | Washington metropolitan area ⓘ |
| style | contemporary luxury resort ⓘ |
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: MGM National Harbor Description of subject: MGM National Harbor is a large luxury casino resort and entertainment complex located just outside Washington, D.C., featuring gaming, dining, retail, and performance venues.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
National Harbor, Maryland
this entity surface form:
MGM National Harbor (nearby)
this entity surface form:
MGM National Harbor resort and casino