Janno Lieber
E33316
Janno Lieber is an American public official and transportation executive who leads New York’s Metropolitan Transportation Authority, overseeing the city’s vast subway, bus, and commuter rail systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Janno Lieber canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T168765 — 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: Janno Lieber Context triple: [Metropolitan Transportation Authority, chairperson, Janno Lieber]
-
A.
Bill Kramer
Bill Kramer is an American entrepreneur best known for establishing the iconic independent bookstore and café Kramerbooks & Afterwords Cafe in Washington, D.C.
-
B.
Brian Bilello
Brian Bilello is an American soccer executive best known for leading Major League Soccer’s New England Revolution as the club’s president.
-
C.
Marvin Jacobs
Marvin Jacobs was an entrepreneur best known as a founder of the global hospitality and food service company Delaware North.
-
D.
Martin Lindauer
Martin Lindauer was a German behavioral biologist and prominent honeybee researcher known for his pioneering work on insect communication and social organization.
-
E.
Charles Begole
Charles Begole was an American mountaineer best known as one of the first climbers to reach the summit of Mount Whitney in the 19th century.
- 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: Janno Lieber Target entity description: Janno Lieber is an American public official and transportation executive who leads New York’s Metropolitan Transportation Authority, overseeing the city’s vast subway, bus, and commuter rail systems.
-
A.
Bill Kramer
Bill Kramer is an American entrepreneur best known for establishing the iconic independent bookstore and café Kramerbooks & Afterwords Cafe in Washington, D.C.
-
B.
Brian Bilello
Brian Bilello is an American soccer executive best known for leading Major League Soccer’s New England Revolution as the club’s president.
-
C.
Marvin Jacobs
Marvin Jacobs was an entrepreneur best known as a founder of the global hospitality and food service company Delaware North.
-
D.
Martin Lindauer
Martin Lindauer was a German behavioral biologist and prominent honeybee researcher known for his pioneering work on insect communication and social organization.
-
E.
Charles Begole
Charles Begole was an American mountaineer best known as one of the first climbers to reach the summit of Mount Whitney in the 19th century.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
public official ⓘ transportation executive ⓘ |
| appointedBy | Kathy Hochul ⓘ |
| appointedToOffice | Chair and CEO of the Metropolitan Transportation Authority ⓘ |
| boardMemberOf |
Metropolitan Transportation Authority
ⓘ
surface form:
Metropolitan Transportation Authority Board
|
| countryOfCitizenship | United States of America ⓘ |
| dateOfAssumingOffice | 2022-01-01 ⓘ |
| educatedAt |
Harvard University
ⓘ
surface form:
Harvard College
New York University School of Law ⓘ |
| employer | Metropolitan Transportation Authority ⓘ |
| fieldOfWork |
public transportation
ⓘ
urban planning ⓘ |
| knownFor |
Leading New York’s Metropolitan Transportation Authority
ⓘ
Management of large-scale transportation infrastructure projects ⓘ |
| languageSpoken | English ⓘ |
| memberOfPoliticalParty | Democratic Party ⓘ |
| name | Janno Lieber self-link ⓘ |
| notableWork |
Leadership of New York City subway, bus, and commuter rail operations
ⓘ
Oversight of World Trade Center redevelopment projects ⓘ |
| occupation |
business executive
ⓘ
public administrator ⓘ |
| placeOfBirth | United States of America ⓘ |
| positionHeld |
Acting Chair and CEO of the Metropolitan Transportation Authority
ⓘ
Chair and CEO of the Metropolitan Transportation Authority ⓘ Chief Development Officer of the Metropolitan Transportation Authority ⓘ President of World Trade Center Properties ⓘ |
| previousEmployer | Silverstein Properties ⓘ |
| residence | New York City ⓘ |
| sector | public transportation ⓘ |
| workLocation | New York City ⓘ |
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: Janno Lieber Description of subject: Janno Lieber is an American public official and transportation executive who leads New York’s Metropolitan Transportation Authority, overseeing the city’s vast subway, bus, and commuter rail systems.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.