Mark O’Brien
E14989
Mark O’Brien is an American local politician who has served as the mayor of Augusta, Maine.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mark O’Brien canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T131883 — 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 O’Brien Context triple: [Augusta, Maine, mayor, Mark O’Brien]
-
A.
Nick Sagan
Nick Sagan is an American science fiction writer and screenwriter, known for his work on television series like Star Trek and for being the son of astronomer Carl Sagan.
-
B.
Wesley Addy
Wesley Addy was an American character actor known for his work on stage, film, and television, including roles in classic movies like "Kiss Me Deadly" and collaborations with director Robert Aldrich.
-
C.
Rod Langway
Rod Langway is a Hall of Fame American defenseman renowned for his defensive prowess and leadership, particularly during the 1980s, which helped transform the Washington Capitals into a competitive NHL franchise.
-
D.
Raleigh Becket
Raleigh Becket is the main Jaeger pilot protagonist in the science fiction film "Pacific Rim," known for co-piloting the giant robot Gipsy Danger against invading Kaiju.
-
E.
Rory John Gates
Rory John Gates is the only son of Microsoft co-founder Bill Gates and philanthropist Melinda French Gates, known for maintaining a relatively private life despite his high-profile family background.
- 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 O’Brien Target entity description: Mark O’Brien is an American local politician who has served as the mayor of Augusta, Maine.
-
A.
Nick Sagan
Nick Sagan is an American science fiction writer and screenwriter, known for his work on television series like Star Trek and for being the son of astronomer Carl Sagan.
-
B.
Wesley Addy
Wesley Addy was an American character actor known for his work on stage, film, and television, including roles in classic movies like "Kiss Me Deadly" and collaborations with director Robert Aldrich.
-
C.
John Curran
John Curran is an American film director and screenwriter known for character-driven dramas such as "Chappaquiddick," "We Don't Live Here Anymore," and "The Painted Veil."
-
D.
Rod Langway
Rod Langway is a Hall of Fame American defenseman renowned for his defensive prowess and leadership, particularly during the 1980s, which helped transform the Washington Capitals into a competitive NHL franchise.
-
E.
Raleigh Becket
Raleigh Becket is the main Jaeger pilot protagonist in the science fiction film "Pacific Rim," known for co-piloting the giant robot Gipsy Danger against invading Kaiju.
- F. None of above. chosen
Statements (10)
| Predicate | Object |
|---|---|
| instanceOf |
American politician
ⓘ
human ⓘ mayor ⓘ politician ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| occupation | politician ⓘ |
| politicalActivity | local politics in Augusta, Maine ⓘ |
| positionHeld | mayor of Augusta, Maine ⓘ |
| residence | Augusta, Maine ⓘ |
| workLocation | Augusta, Maine ⓘ |
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 O’Brien Description of subject: Mark O’Brien is an American local politician who has served as the mayor of Augusta, Maine.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.