Marietta Edgecombe
E590470
Marietta Edgecombe is a Hogwarts student in the Harry Potter series who secretly informs Dolores Umbridge about Dumbledore’s Army, leading to the group’s exposure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Marietta Edgecombe canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6081620 — 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: Marietta Edgecombe Context triple: [Dumbledore's Army, betrayedBy, Marietta Edgecombe]
-
A.
Martha Huggins
Martha Huggins is an actress best known for her role in the classic film "The Ghost and Mrs. Muir."
-
B.
Mary Jennings
Mary Jennings was the first wife of American folk singer-songwriter Woody Guthrie.
-
C.
Marguerite Byrd
Marguerite Byrd is best known as the first wife of singer, actor, and civil rights activist Harry Belafonte.
-
D.
Henrietta Boggs
Henrietta Boggs was an American-Costa Rican writer, journalist, and political activist best known as the former First Lady of Costa Rica and a key figure in the country’s 1948 revolution and subsequent democratic reforms.
-
E.
Anna Moore
Anna Moore is the virtuous, long-suffering heroine of the silent film "Way Down East," whose trials and resilience drive the story’s emotional core.
- 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: Marietta Edgecombe Target entity description: Marietta Edgecombe is a Hogwarts student in the Harry Potter series who secretly informs Dolores Umbridge about Dumbledore’s Army, leading to the group’s exposure.
-
A.
Martha Huggins
Martha Huggins is an actress best known for her role in the classic film "The Ghost and Mrs. Muir."
-
B.
Mary Jennings
Mary Jennings was the first wife of American folk singer-songwriter Woody Guthrie.
-
C.
Marguerite Byrd
Marguerite Byrd is best known as the first wife of singer, actor, and civil rights activist Harry Belafonte.
-
D.
Henrietta Boggs
Henrietta Boggs was an American-Costa Rican writer, journalist, and political activist best known as the former First Lady of Costa Rica and a key figure in the country’s 1948 revolution and subsequent democratic reforms.
-
E.
Anna Moore
Anna Moore is the virtuous, long-suffering heroine of the silent film "Way Down East," whose trials and resilience drive the story’s emotional core.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
fictional character
ⓘ
witch ⓘ |
| action | reveals location of Dumbledore's Army meetings NERFINISHED ⓘ |
| appearsIn |
Harry Potter and the Half-Blood Prince (mentioned)
NERFINISHED
ⓘ
Harry Potter and the Order of the Phoenix (novel) NERFINISHED ⓘ |
| appearsInFilm | Harry Potter and the Order of the Phoenix (film) NERFINISHED ⓘ |
| associatedWith | Inquisitorial Squad NERFINISHED ⓘ |
| attendsSchool | Hogwarts School of Witchcraft and Wizardry NERFINISHED ⓘ |
| betrayalLocation | Hogwarts School of Witchcraft and Wizardry NERFINISHED ⓘ |
| betrayalTarget |
Albus Dumbledore
NERFINISHED
ⓘ
Harry Potter NERFINISHED ⓘ |
| betrays | Dumbledore's Army NERFINISHED ⓘ |
| bloodStatus | half-blood ⓘ |
| consequenceOfBetrayal | exposure of Dumbledore's Army ⓘ |
| creator | J. K. Rowling NERFINISHED ⓘ |
| curseType | jinx ⓘ |
| educationLevel | Hogwarts student ⓘ |
| fearOf | Ministry of Magic repercussions for her mother ⓘ |
| firstAppearance | Harry Potter and the Order of the Phoenix NERFINISHED ⓘ |
| friend | Cho Chang NERFINISHED ⓘ |
| gender | female ⓘ |
| hairColor | curly ⓘ |
| house | Ravenclaw NERFINISHED ⓘ |
| informs | Dolores Umbridge NERFINISHED ⓘ |
| jinxCaster | Hermione Granger NERFINISHED ⓘ |
| jinxEffect | acne-like pustules spelling SNEAK on her face ⓘ |
| jinxTrigger | betrayal of Dumbledore's Army ⓘ |
| knownFor | betraying Dumbledore's Army to Dolores Umbridge ⓘ |
| language | English ⓘ |
| loyalty |
Dolores Umbridge
NERFINISHED
ⓘ
Ministry of Magic NERFINISHED ⓘ |
| medium |
film
ⓘ
literature ⓘ |
| meetingPlaceRevealed | Room of Requirement NERFINISHED ⓘ |
| mother | Madam Edgecombe NERFINISHED ⓘ |
| motherDepartment | Floo Network Office NERFINISHED ⓘ |
| motherOccupation | Ministry of Magic employee ⓘ |
| nationality | British ⓘ |
| organizationMembership | Dumbledore's Army NERFINISHED ⓘ |
| portrayedBy | Sian Grace Phillips NERFINISHED ⓘ |
| reasonForJoiningDA | persuaded by Cho Chang ⓘ |
| reluctantMemberOf | Dumbledore's Army NERFINISHED ⓘ |
| roleInPlot | catalyst for discovery of Dumbledore's Army ⓘ |
| species | human ⓘ |
| subjectOf | Hermione's secrecy jinx on DA sign-up sheet ⓘ |
| timePeriodOfKeyEvents | 1995–1996 school year ⓘ |
| universe | Harry Potter NERFINISHED ⓘ |
| yearAtHogwartsDuringDA | fifth year ⓘ |
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: Marietta Edgecombe Description of subject: Marietta Edgecombe is a Hogwarts student in the Harry Potter series who secretly informs Dolores Umbridge about Dumbledore’s Army, leading to the group’s exposure.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.