Mark Leno
E225255
Mark Leno is an American Democratic politician and former California state legislator known for representing San Francisco in both the State Assembly and State Senate.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T2021884 — 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: Mark Leno Context triple: [San Francisco mayoral election, 2018, hasCandidate, Mark Leno]
-
A.
Jay Leno
Jay Leno is an American comedian and longtime host of NBC’s “The Tonight Show,” known for his observational stand-up and prominent role in late-night television.
-
B.
Dennis Miller
Dennis Miller is an American stand-up comedian, talk show host, and actor known for his acerbic wit and work on Saturday Night Live and various political commentary programs.
-
C.
Steve Ross
Steve Ross was an American businessman best known for building Warner Communications into a media powerhouse and serving as a key architect of what became Time Warner.
-
D.
Jon Tenney
Jon Tenney is an American actor best known for his role as FBI Special Agent Fritz Howard on the television crime drama series "The Closer."
-
E.
Joseph Clerico
Joseph Clerico was a French impresario best known for co-founding and developing the famed Lido de Paris cabaret into one of Paris’s most iconic nightlife institutions.
- 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: Mark Leno Target entity description: Mark Leno is an American Democratic politician and former California state legislator known for representing San Francisco in both the State Assembly and State Senate.
-
A.
Jay Leno
Jay Leno is an American comedian and longtime host of NBC’s “The Tonight Show,” known for his observational stand-up and prominent role in late-night television.
-
B.
Dennis Miller
Dennis Miller is an American stand-up comedian, talk show host, and actor known for his acerbic wit and work on Saturday Night Live and various political commentary programs.
-
C.
Steve Ross
Steve Ross was an American businessman best known for building Warner Communications into a media powerhouse and serving as a key architect of what became Time Warner.
-
D.
Jon Tenney
Jon Tenney is an American actor best known for his role as FBI Special Agent Fritz Howard on the television crime drama series "The Closer."
-
E.
Joseph Clerico
Joseph Clerico was a French impresario best known for co-founding and developing the famed Lido de Paris cabaret into one of Paris’s most iconic nightlife institutions.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
American politician
ⓘ
Democratic Party politician ⓘ human ⓘ |
| cityOfActivity | San Francisco, California ⓘ |
| continentOfActivity | North America ⓘ |
| countryOfActivity | United States of America ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| familyName |
Leno
ⓘ
linked to:
Mark Leno
|
| givenName | Mark ⓘ |
| ideology |
liberalism
ⓘ
progressivism ⓘ |
| languageSpoken | English ⓘ |
| legislativeBody |
California State Assembly
ⓘ
California State Senate ⓘ |
| name | Mark Leno ⓘ |
| notableFor |
representing San Francisco in the California State Assembly
ⓘ
representing San Francisco in the California State Senate ⓘ service as a California state legislator ⓘ |
| occupation | politician ⓘ |
| politicalParty |
Democratic Party (United States)
ⓘ
linked to:
Democratic Party
|
| positionHeld |
Member of the California State Assembly
ⓘ
Member of the California State Senate ⓘ |
| represented | San Francisco, California ⓘ |
| residence | San Francisco, California ⓘ |
| stateOfActivity |
California
ⓘ
linked to:
California, United States
|
| stateRepresented |
California
ⓘ
linked to:
California, United States
|
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: Mark Leno Description of subject: Mark Leno is an American Democratic politician and former California state legislator known for representing San Francisco in both the State Assembly and State Senate.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Mark Leno