Jacob Graff Jr.
E151402
Jacob Graff Jr. was an 18th-century Philadelphia bricklayer and property owner best known for owning the house where Thomas Jefferson drafted the United States Declaration of Independence.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Jacob Graff | 3 |
| Jacob Graff Jr. canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T916025 — 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: Jacob Graff Jr. Context triple: [Declaration House, ownerAtTime, Jacob Graff Jr.]
-
A.
Joseph Buloff
Joseph Buloff was a Lithuanian-born American actor and director known for his work in Yiddish theater and on Broadway.
-
B.
John Pleffer
John Pleffer is an Australian architect best known as the husband of acclaimed film director Gillian Armstrong.
-
C.
Henry Jacoby
Henry Jacoby is an American economist and climate policy expert known for his work on energy and environmental economics at the Massachusetts Institute of Technology.
-
D.
George Jacobs Sr.
George Jacobs Sr. was an elderly farmer in Salem, Massachusetts, who was accused of witchcraft during the Salem witch trials and executed by hanging in 1692.
-
E.
Matthias N. Forney
Matthias N. Forney was a 19th-century American mechanical engineer and locomotive designer who played a key role in the early professionalization of mechanical engineering in the United States.
- 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: Jacob Graff Jr. Target entity description: Jacob Graff Jr. was an 18th-century Philadelphia bricklayer and property owner best known for owning the house where Thomas Jefferson drafted the United States Declaration of Independence.
-
A.
Joseph Buloff
Joseph Buloff was a Lithuanian-born American actor and director known for his work in Yiddish theater and on Broadway.
-
B.
John Pleffer
John Pleffer is an Australian architect best known as the husband of acclaimed film director Gillian Armstrong.
-
C.
Henry Jacoby
Henry Jacoby is an American economist and climate policy expert known for his work on energy and environmental economics at the Massachusetts Institute of Technology.
-
D.
George Jacobs Sr.
George Jacobs Sr. was an elderly farmer in Salem, Massachusetts, who was accused of witchcraft during the Salem witch trials and executed by hanging in 1692.
-
E.
Matthias N. Forney
Matthias N. Forney was a 19th-century American mechanical engineer and locomotive designer who played a key role in the early professionalization of mechanical engineering in the United States.
- F. None of above. chosen
Statements (16)
| Predicate | Object |
|---|---|
| instanceOf |
18th-century person
ⓘ
founding document ⓘ house ⓘ person ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| countryOfCitizenship |
United States
ⓘ
linked to:
United States of America
|
| drafted |
United States Declaration of Independence
ⓘ
linked to:
American Declaration of Independence
|
| draftLocation | Graff House ⓘ |
| location | Philadelphia ⓘ |
| notableFor |
being the house where Thomas Jefferson drafted the United States Declaration of Independence
ⓘ
owning the house where Thomas Jefferson drafted the United States Declaration of Independence ⓘ |
| occupation |
bricklayer
ⓘ
property owner ⓘ |
| owned | Graff House ⓘ |
| residence | Philadelphia ⓘ |
| residenceDuringDrafting | Graff House ⓘ |
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: Jacob Graff Jr. Description of subject: Jacob Graff Jr. was an 18th-century Philadelphia bricklayer and property owner best known for owning the house where Thomas Jefferson drafted the United States Declaration of Independence.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Jacob Graff Jr.
linked to: Jacob Graff Jr.
subject linked to:
Jacob Graff and family
linked to: Jacob Graff Jr.