DeMatha Catholic High School
E253803
DeMatha Catholic High School is a renowned all-boys Catholic college preparatory school in Hyattsville, Maryland, known for its powerhouse basketball program and producing numerous elite athletes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| DeMatha Catholic High School canonical | 4 |
| DeMatha Catholic High School, Hyattsville, Maryland | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2299711 — 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: DeMatha Catholic High School Context triple: [Markelle Fultz, highSchool, DeMatha Catholic High School]
-
A.
Towson Catholic High School
Towson Catholic High School was a now-closed private Catholic high school in Towson, Maryland, known for its strong basketball program and notable alumni including NBA star Carmelo Anthony.
-
B.
Quince Orchard High School
Quince Orchard High School is a public secondary school in Gaithersburg, Maryland, known for its strong academics, athletics, and extracurricular programs within the Montgomery County Public Schools system.
-
C.
St. Vincent–St. Mary High School
St. Vincent–St. Mary High School is a private Catholic high school in Akron, Ohio, best known nationally as the alma mater of NBA superstar LeBron James and its powerhouse basketball program.
-
D.
Brandywine High School
Brandywine High School is a public secondary school in Delaware known in part for having First Lady Jill Biden as a former teacher.
-
E.
St. Joseph Military Academy
St. Joseph Military Academy was a military-style preparatory school in Kansas known for its disciplined environment and for having briefly educated the future author Truman Capote.
- 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: DeMatha Catholic High School Target entity description: DeMatha Catholic High School is a renowned all-boys Catholic college preparatory school in Hyattsville, Maryland, known for its powerhouse basketball program and producing numerous elite athletes.
-
A.
Towson Catholic High School
Towson Catholic High School was a now-closed private Catholic high school in Towson, Maryland, known for its strong basketball program and notable alumni including NBA star Carmelo Anthony.
-
B.
Quince Orchard High School
Quince Orchard High School is a public secondary school in Gaithersburg, Maryland, known for its strong academics, athletics, and extracurricular programs within the Montgomery County Public Schools system.
-
C.
St. Vincent–St. Mary High School
St. Vincent–St. Mary High School is a private Catholic high school in Akron, Ohio, best known nationally as the alma mater of NBA superstar LeBron James and its powerhouse basketball program.
-
D.
Brandywine High School
Brandywine High School is a public secondary school in Delaware known in part for having First Lady Jill Biden as a former teacher.
-
E.
St. Joseph Military Academy
St. Joseph Military Academy was a military-style preparatory school in Kansas known for its disciplined environment and for having briefly educated the future author Truman Capote.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Catholic high school
ⓘ
all-boys school ⓘ college preparatory school ⓘ private school ⓘ secondary school ⓘ |
| city |
Hyattsville, Maryland
ⓘ
surface form:
Hyattsville
|
| competesIn | Washington Catholic Athletic Conference ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| educationLevel | secondary education ⓘ |
| foundedBy |
Spanish Trinitarian Order
ⓘ
surface form:
Trinitarian Order
|
| genderAdmission | boys ⓘ |
| grades | 9–12 ⓘ |
| hasCampusType | suburban ⓘ |
| hasNotableAlumniField |
American football
ⓘ
baseball ⓘ basketball ⓘ coaching ⓘ music ⓘ |
| hasProgram |
baseball
ⓘ
basketball ⓘ football ⓘ music program ⓘ track and field ⓘ |
| hasReligiousOrder | Trinitarians ⓘ |
| isNonGovernmental | true ⓘ |
| isSingleSex | true ⓘ |
| knownFor |
athletic programs
ⓘ
basketball program ⓘ producing elite athletes ⓘ |
| languageOfInstruction | English ⓘ |
| locatedIn |
Hyattsville, Maryland
ⓘ
Maryland ⓘ Prince George’s County, Maryland ⓘ
surface form:
Prince George's County, Maryland
|
| mascot | Stag ⓘ |
| namedAfter | Saint John de Matha ⓘ |
| offersPreparationFor | college admission ⓘ |
| region | Washington metropolitan area ⓘ |
| religiousAffiliation |
Roman Catholic Archdiocese of Washington
ⓘ
surface form:
Archdiocese of Washington
Roman Catholicism ⓘ
surface form:
Roman Catholic Church
|
| religiousEducation | Catholic theology ⓘ |
| schoolColors |
blue
ⓘ
red ⓘ white ⓘ |
| schoolType | college preparatory ⓘ |
| state | Maryland ⓘ |
| tuitionBased | true ⓘ |
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: DeMatha Catholic High School Description of subject: DeMatha Catholic High School is a renowned all-boys Catholic college preparatory school in Hyattsville, Maryland, known for its powerhouse basketball program and producing numerous elite athletes.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
DeMatha Catholic High School, Hyattsville, Maryland