Lerner family
E3256
The Lerner family is a prominent Washington, D.C.–based real estate and business family best known for owning Major League Baseball’s Washington Nationals.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lerner family canonical | 11 |
How this entity was disambiguated
This entity first appeared as the object of triple T35976 — 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: Lerner family Context triple: [Washington Nationals, owner, Lerner family]
-
A.
Roosevelt family
The Roosevelt family is a prominent American political dynasty best known for producing U.S. Presidents Theodore Roosevelt and Franklin D. Roosevelt, along with numerous other influential public figures.
-
B.
Sally Kornbluth
Sally Kornbluth is an American cell biologist and academic leader who became the 18th president of the Massachusetts Institute of Technology.
-
C.
Maxine Singer
Maxine Singer is an American molecular biologist renowned for her pioneering work in genetics and for her leadership in shaping ethical guidelines for recombinant DNA research.
-
D.
Henry Clay Frick
Henry Clay Frick was an American industrialist and financier best known for his leadership in the steel and coke industries and his role in the development of Carnegie Steel.
-
E.
Theodor
Theodor "Ted" Nelson is an American pioneer of information technology best known for coining the term "hypertext" and envisioning global hyperlinked document systems.
- 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: Lerner family Target entity description: The Lerner family is a prominent Washington, D.C.–based real estate and business family best known for owning Major League Baseball’s Washington Nationals.
-
A.
Roosevelt family
The Roosevelt family is a prominent American political dynasty best known for producing U.S. Presidents Theodore Roosevelt and Franklin D. Roosevelt, along with numerous other influential public figures.
-
B.
Sally Kornbluth
Sally Kornbluth is an American cell biologist and academic leader who became the 18th president of the Massachusetts Institute of Technology.
-
C.
Maxine Singer
Maxine Singer is an American molecular biologist renowned for her pioneering work in genetics and for her leadership in shaping ethical guidelines for recombinant DNA research.
-
D.
Henry Clay Frick
Henry Clay Frick was an American industrialist and financier best known for his leadership in the steel and coke industries and his role in the development of Carnegie Steel.
-
E.
Theodor
Theodor "Ted" Nelson is an American pioneer of information technology best known for coining the term "hypertext" and envisioning global hyperlinked document systems.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
American family
ⓘ
business family ⓘ |
| acquired | Washington Nationals in 2006 ⓘ |
| associatedWith |
Lerner Family Foundation
ⓘ
Washington Nationals Dream Foundation ⓘ
linked to:
Washington Nationals
|
| basedIn | Washington, D.C. ⓘ |
| businessInterest |
Chelsea Piers (partial, historical)
ⓘ
Lerner Enterprises ⓘ The JBG Companies (historical stake) ⓘ |
| category |
American real estate families
ⓘ
Business families of the United States ⓘ Major League Baseball owners ⓘ Washington Nationals owners ⓘ |
| controls | Lerner Enterprises ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| ethnicBackground | Jewish-American ⓘ |
| founderOf | Lerner Enterprises ⓘ |
| industry |
business
ⓘ
real estate ⓘ |
| knownFor | ownership of the Washington Nationals ⓘ |
| member |
Annette Lerner
ⓘ
Debra Lerner Cohen ⓘ Mark Lerner ⓘ
linked to:
Ted Lerner
Marla Lerner Tanenbaum ⓘ Ted Lerner ⓘ |
| notableBusiness |
mixed-use developments
ⓘ
office buildings ⓘ shopping centers ⓘ |
| notableMemberRole |
Mark Lerner became principal owner of the Washington Nationals
ⓘ
Ted Lerner was managing principal owner of the Washington Nationals ⓘ |
| notablePropertyHoldingsArea |
Maryland
ⓘ
Virginia ⓘ Washington, D.C. metropolitan area ⓘ
linked to:
Washington metropolitan area
|
| owns |
Washington Nationals
ⓘ
Washington Nationals Baseball Club ⓘ
linked to:
Washington Nationals
|
| philanthropicFocus |
Jewish causes
ⓘ
cultural institutions in Washington, D.C. ⓘ education ⓘ healthcare ⓘ |
| regionOfInfluence |
Mid-Atlantic real estate market
ⓘ
Washington, D.C. area business community ⓘ |
| roleInWashingtonNationals |
managing partners
ⓘ
principal owners ⓘ |
| sportsFranchiseOwnership |
Major League Baseball team
ⓘ
National League East franchise ⓘ |
| successorTo |
Montreal Expos franchise (as Washington Nationals owners)
ⓘ
linked to:
Washington Nationals
|
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: Lerner family Description of subject: The Lerner family is a prominent Washington, D.C.–based real estate and business family best known for owning Major League Baseball’s Washington Nationals.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.